Encyclopedia Astronautica
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1973 Chronology

1973 January 1 - . LV Family: N1. Launch Vehicle: N1F-L3M.
  • N1-L3M - . Nation: Russia. Program: Lunar L3. Spacecraft Bus: L3M. Spacecraft: L3M-1972. The first lunar expedition project, the N1-L3M, was studied in 1973..

1973 - . Launch Site: Biscarosse. Launch Platform: S655. LV Family: MSBS. Launch Vehicle: MSBS M2.
  • Operational test - . Nation: France. Agency: DMA. Apogee: 600 km (370 mi).

1973 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100U.
  • SLI missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Plesetsk. LV Family: R-9. Launch Vehicle: R-9A.
  • UBP - . Nation: Russia. Agency: RVSN. Apogee: 1,160 km (720 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Plesetsk. LV Family: R-16. Launch Vehicle: R-16U.
  • UBP R-16 PL73-02 - . Nation: Russia. Agency: RVSN. Apogee: 1,210 km (750 mi).

1973 - . Launch Site: Plesetsk. LV Family: R-16. Launch Vehicle: R-16U.
  • UBP R-16 PL73-01 - . Nation: Russia. Agency: RVSN. Apogee: 1,210 km (750 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Plesetsk. LV Family: RT-2. Launch Vehicle: RT-2P.
  • RT2 PL73-01 - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Plesetsk. LV Family: RT-2. Launch Vehicle: RT-2P.
  • RT2 PL73-01 - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Plesetsk. LV Family: RT-2. Launch Vehicle: RT-2P.
  • RT2 PL73-01 - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973? - . Launch Site: Teikovo. LV Family: UR-100. Launch Vehicle: UR-100K.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 - . Launch Site: Drovyanaya. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 January 2 - . 13:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 91 km (56 mi).

1973 January 3 - . 15:00 GMT - . Launch Site: Molodezhnaya. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 January 4 - . 17:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 January 5 - . 15:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 86 km (53 mi).

1973 January 6 - . 16:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 86 km (53 mi).

1973 January 7 - . 17:57 GMT - . Launch Site: Fort Churchill. LV Family: Loki. Launch Vehicle: Loki Dart.
  • Starute, Datasonde Meteorological mission - . Nation: USA. Agency: MRN. Apogee: 63 km (39 mi).

1973 January 8 - . 06:55 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/D.
  • Luna 21 - . Payload: Ye-8 s/n 204. Mass: 5,567 kg (12,273 lb). Nation: Russia. Agency: MOM. Program: Luna. Class: Moon. Type: Lunar probe. Spacecraft Bus: Luna Ye-8. Spacecraft: Luna Ye-8. Decay Date: 1973-01-15 . USAF Sat Cat: 6333 . COSPAR: 1973-001A. Apogee: 110 km (60 mi). Perigee: 90 km (55 mi). Inclination: 60.0000 deg. Period: 118.00 min.

    The Proton / Block D launcher put the spacecraft into Earth parking orbit followed by translunar injection. On 12 January 1973, Luna 21 braked into a 90 x 100 km orbit about the Moon. On 13 and 14 January, the perilune was lowered to 16 km altitude. On 15 January after 40 orbits, the braking rocket was fired at 16 km altitude, and the craft went into free fall. At an altitude of 750 meters the main thrusters began firing, slowing the fall until a height of 22 meters was reached. At this point the main thrusters shut down and the secondary thrusters ignited, slowing the fall until the lander was 1.5 meters above the surface, where the engine was cut off. Landing occurred at 23:35 GMT in LeMonnier crater at 25.85 degrees N, 30.45 degrees E. The lander carried a bas relief of Lenin and the Soviet coat-of-arms. After landing, Lunokhod 2 took TV images of the surrounding area, then rolled down a ramp to the surface at 01:14 GMT on 16 January and took pictures of the Luna 21 lander and landing site. It stopped and charged batteries until 18 January, took more images of the lander and landing site, and then set out over the Moon. The rover would run during the lunar day, stopping occasionally to recharge its batteries via the solar panels. At night the rover would hibernate until the next sunrise, heated by the radioactive source. Lunokhod 2 operated for about 4 months, covered 37 km of terrain including hilly upland areas and rilles, and sent back 86 panoramic images and over 80,000 TV pictures. Many mechanical tests of the surface, laser ranging measurements, and other experiments were completed during this time. On June 4 it was announced that the program was completed, leading to speculation that the vehicle probably failed in mid-May or could not be revived after the lunar night of May-June. The Lunokhod was not left in a position such that the laser retroreflector could be used, indicating that the failure may have happened suddenly.


1973 January 9 - . 20:30 GMT - . Launch Site: Barking Sands. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 57 km (35 mi).

1973 January 10 - .
  • Manned Space Flight Management Council meeting. - . Nation: USA. Spacecraft Bus: Skylab. Spacecraft: Apollo ATM.

    At a Manned Space Flight Management Council meeting, William C. Schneider (NASA Hq) emphasized the mounting pressures from open work at KSC and the demanding schedule for integrated systems testing during February and March. As examples he cited the following areas: February ATM system verification AM/MDA/OWS end-to-end system test SL-2 (first manned Skylab launch) vehicle roll March Stowage and crew compartment fit and function review SL-1 and SL-2 flight readiness test


1973 January 11 - . 10:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 543 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-01-24 . USAF Sat Cat: 6339 . COSPAR: 1973-002A. Apogee: 274 km (170 mi). Perigee: 191 km (118 mi). Inclination: 64.9000 deg. Period: 89.20 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 January 12 - . 08:05 GMT - . Launch Site: Green River. LV Family: Athena RTV. Launch Vehicle: Athena H.
  • RANT - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1973 January 12 - . 10:05 GMT - . Launch Site: Green River. LV Family: Athena RTV. Launch Vehicle: Athena H.
  • ABC-1 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1973 January 12 - . 11:46 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • X-ray astronomy mission - . Nation: USA. Agency: KPNO. Apogee: 229 km (142 mi).

1973 January 13 - . 21:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 645. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • Demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 January 15 - . 23:40 GMT - . Launch Site: Kagoshima. LV Family: S-210. Launch Vehicle: S-210.
  • Ionosphere mission - . Nation: Japan. Agency: ISAS. Apogee: 122 km (75 mi).

1973 January 16 - . 17:30 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 157 km (97 mi).

1973 January 16 - . 20:58 GMT - . Launch Site: Andoya. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 278 km (172 mi).

1973 January 17 - . 09:00 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 93 km (57 mi).

1973 January 18 - . 17:55 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • LPARL X-ray spectrometer Solar x-ray mission - . Nation: USA. Agency: NASA. Apogee: 245 km (152 mi).

1973 January 19 - . LV Family: Saturn V. Launch Vehicle: Saturn V.
  • Plan for storage of unassigned Saturn hardware and phaseout of Saturn V. - . Nation: USA. Program: Skylab.

    MSFC began implementation of a plan for preparation and storage of unassigned Saturn hardware, phaseout of the Saturn V production capability, and amendment of the facility operations contract at the Michoud Assembly Facility for minimum surveillance of stored hardware.


1973 January 19 - . 09:00 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 9M.
  • VLF Ionosphere / active plasma mission - . Nation: Japan. Agency: ISAS. Apogee: 330 km (200 mi).

1973 January 20 - . 03:36 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 544 - . Mass: 750 kg (1,650 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Tselina-O. Spacecraft: Tselina-O. Decay Date: 1980-06-15 . USAF Sat Cat: 6343 . COSPAR: 1973-003A. Apogee: 535 km (332 mi). Perigee: 528 km (328 mi). Inclination: 74.0000 deg. Period: 95.20 min. Replaced Cosmos 460. Possible ELINT satellite..

1973 January 21 - . 09:40 GMT - . Launch Site: Thumba. LV Family: Belier. Launch Vehicle: Centaure 2A.
  • ISRO 5.15 Fields mission - . Nation: India. Agency: ISRO. Apogee: 165 km (102 mi).

1973 January 22 - . 23:10 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Aeronomy / solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 277 km (172 mi).

1973 January 23 - .
  • Birth of Kjell Norwood Lindgren - . Nation: USA. Related Persons: Lindgren. American physician mission specialist astronaut, 2009-on..

1973 January 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 628. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-5 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 January 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 628. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-5 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 January 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 628. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-5 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 January 23 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 628. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-5 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 January 24 - . Launch Site: Baikonur. Launch Complex: Baikonur LC142/34. LV Family: R-36. Launch Vehicle: R-36 8K67MA.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 January 24 - . 11:44 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 545 - . Payload: DS-P1-Yu s/n 62. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1973-08-01 . Decay Date: 1973-07-31 . USAF Sat Cat: 6348 . COSPAR: 1973-004A. Apogee: 495 km (307 mi). Perigee: 268 km (166 mi). Inclination: 71.0000 deg. Period: 92.20 min. Development of systems for air defence and the control of outer space..

1973 January 25 - . Launch Site: Kwajalein. Launch Complex: Kwajalein Meck. LV Family: Spartan ABM. Launch Vehicle: Spartan ABM.
  • Safeguard M2-26 Interceptor mission - . Nation: USA. Agency: US Army. Apogee: 150 km (90 mi).

1973 January 25 - . 01:15 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. LV Family: Lupus. Launch Vehicle: Cockatoo.
  • Aeronomy mission - . Nation: Australia. Agency: WRE. Apogee: 122 km (75 mi).

1973 January 26 - .
  • Ames requested six R4D rocket engines surplus to the Apollo program for Pioneer-Venus - . Nation: USA. Program: Apollo. Spacecraft Bus: Pioneer 12. Spacecraft: Pioneer 12.

    Ames Research Center requested that six R4D rocket engines designed for use in the Apollo program be transferred from MSC to Ames. Possibly the engines would be suitable for the retro-injection function in the Pioneer Venus series of atmospheric probe and orbiter missions. First launch was planned for early 1977.


1973 January 26 - .
  • Rocco A. Petrone became the new NASA MSFC Director. - . Nation: USA. Related Persons: Petrone, Rees. MSFC Director Eberhard F. M. Rees retired. He had served as Director since 1 March 1970. Rocco A. Petrone, NASA Apollo Program Director, became the new MSFC Director. .

1973 January 26 - . 11:44 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar LC107/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 546 - . Payload: Tsiklon Mass Model. Mass: 750 kg (1,650 lb). Nation: Russia. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: KAUR-1. Spacecraft: Tsiklon satellite. USAF Sat Cat: 6350 . COSPAR: 1973-005A. Apogee: 564 km (350 mi). Perigee: 537 km (333 mi). Inclination: 50.7000 deg. Period: 95.70 min. Military navigation satellite..

1973 January 27 - . 18:31 GMT - . Launch Site: Andoya. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Ferdinand 32 / Proton 2 Plasma mission - . Nation: USA. Agency: NASA. Apogee: 222 km (137 mi).

1973 January 28 - . Launch Site: Kagoshima. Launch Complex: Kagoshima L. LV Family: Lambda. Launch Vehicle: Lambda 4SC.
  • TVC test - . Nation: Japan. Agency: ISAS. Apogee: 1,500 km (900 mi).

1973 January 29 - . 05:02 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant IVB.
  • Aurora mission - . Nation: Canada. Agency: NRCC. Apogee: 760 km (470 mi).

1973 January 30 - . 06:35 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 3 AC.
  • GX2+5 Lunar Occultation X-ray astronomy mission - . Nation: UK. Agency: BAC. Apogee: 234 km (145 mi).

1973 January 31 - . 01:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF08. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • Research and development / operational test - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 February 1 - .
  • Death of Kurt Kunibert Karlmann Neuhoefer - . Nation: Austria, Germany. Related Persons: Neuhoefer. Austrian-German engineer in WW2, member of the Rocket Team in the United States thereafter..

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Salto di Quirra. LV Family: Alfa. Launch Vehicle: Alfa.
  • Spurious? - . Nation: Italy. Apogee: 50 km (31 mi). First test flight of Italian submarine- and ship-launched ballistic missile. Dummy second stage. Successful 57 second flight..

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 1 - . 08:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 547 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 12.00 days. Decay Date: 1973-02-13 . USAF Sat Cat: 6353 . COSPAR: 1973-006A. Apogee: 309 km (192 mi). Perigee: 203 km (126 mi). Inclination: 64.0000 deg. Period: 89.60 min. Area survey photo reconnaissance satellite; returned film capsule..

1973 February 1 - . 14:33 GMT - . Launch Site: Natal. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • DLR N-BBVC-52 Aeronomy / ionosphere mission - . Nation: Germany. Agency: DFVLR. Apogee: 308 km (191 mi).

1973 February 2 - . 06:15 GMT - . Launch Site: Gillam. LV Family: Black Brant. Launch Vehicle: Black Brant IIIB.
  • Auroral mission - . Nation: Canada. Agency: NRCC. Apogee: 200 km (120 mi).

1973 February 2 - . 06:20 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant VB.
  • Auroral substorm Aurora / aeronomy / plasma mission - . Nation: Canada. Agency: NRCC. Apogee: 335 km (208 mi).

1973 February 2 - . 14:08 GMT - . Launch Site: Wallops Island. LV Family: Terrier. Launch Vehicle: Terrier Recruit.
  • SAMS R487101 - . Nation: USA. Agency: NASA. Apogee: 4.00 km (2.40 mi).

1973 February 2 - . 14:08 GMT - . Launch Site: Wallops Island. LV Family: Terrier. Launch Vehicle: Terrier Recruit.
  • SAMS R487102 - . Nation: USA. Agency: NASA. Apogee: 4.00 km (2.40 mi).

1973 February 2 - . 19:05 GMT - . Launch Site: Thumba. LV Family: Belier. Launch Vehicle: Centaure 2A.
  • ISRO 5.18 CO.07 Ionosphere mission - . Nation: India. Agency: ISRO. Apogee: 147 km (91 mi).

1973 February 3 - . Launch Site: Kwajalein. Launch Complex: Kwajalein Meck. LV Family: Spartan ABM. Launch Vehicle: Spartan ABM.
  • Safeguard M2-43 Interceptor mission - . Nation: USA. Agency: US Army. Apogee: 100 km (60 mi).

1973 February 3 - . 05:48 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 1-23 - . Payload: Molniya-1. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-1. Decay Date: 1977-10-23 . USAF Sat Cat: 6356 . COSPAR: 1973-007A. Apogee: 39,602 km (24,607 mi). Perigee: 476 km (295 mi). Inclination: 65.0000 deg. Period: 712.20 min. Uncertain if Molniya-1T model was Molniya-1 or Molniya-1T. Operation of a system of long range telephone-telegraph radiocommunication, and transmission of USSR Central Television programmes to the stations of the Orbita network..

1973 February 4 - . 19:00 GMT - . Launch Site: Koroni. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 90 km (55 mi).

1973 February 5 - . 04:48 GMT - . Launch Site: Poker Flat. LV Family: Sandhawk. Launch Vehicle: Sandhawk Tomahawk. FAILURE: Failure.
  • Barium release ZURITA Aeronomy / Fields mission - . Nation: USA. Agency: Sandia. Apogee: 500 km (310 mi).

1973 February 6 - . 10:35 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Caribou VII Aurora mission - . Nation: USA. Agency: Sandia. Apogee: 270 km (160 mi).

1973 February 6 - . 19:59 GMT - . Launch Site: Andoya. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Ferdinand 30 / Electra-2 Plasma mission - . Nation: USA. Agency: NASA. Apogee: 255 km (158 mi).

1973 February 7 - . 01:50 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima T. LV Family: JCR. Launch Vehicle: JCR.
  • Test mission - . Nation: Japan. Agency: NASDA. Apogee: 200 km (120 mi).

1973 February 7 - . 14:09 GMT - . Launch Site: Natal. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • DLR N-BBVC-54 Aeronomy mission - . Nation: Germany. Agency: DFVLR. Apogee: 211 km (131 mi).

1973 February 8 - . 13:15 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 548 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-02-21 . USAF Sat Cat: 6359 . COSPAR: 1973-008A. Apogee: 300 km (180 mi). Perigee: 205 km (127 mi). Inclination: 65.4000 deg. Period: 89.60 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 February 9 - . 00:54 GMT - . Launch Site: Kiruna. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • SSC S7-2 (SNT 7 / 2) Aurora mission - . Nation: Sweden. Agency: NASA, SSC. Apogee: 182 km (113 mi).

1973 February 9 - . 02:53 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant IVB.
  • Aeronomy / plasma / aurora mission - . Nation: Canada. Agency: NRCC. Apogee: 760 km (470 mi).

1973 February 9 - . 04:08 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 216 km (134 mi).

1973 February 10 - . 10:00 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 87 km (54 mi).

1973 February 12 - .
  • Death of Edward S Forman - . Nation: USA. Related Persons: Forman. Early American rocket pioneer; co-founder of Aerojet.

1973 February 12 - . 20:32 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para - . Nation: USA. Agency: MRN. Apogee: 54 km (33 mi).

1973 February 13 - . 16:29 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: UK S23. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1973 February 14 - . Launch Site: Biscarosse. Launch Complex: Biscarosse BLB. LV Family: MSBS. Launch Vehicle: SSBS S02.
  • S02C 2601 test - . Nation: France. Agency: DMA. Apogee: 1,000 km (600 mi).

1973 February 14 - . 20:45 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral mission - . Nation: Japan. Agency: NIPR. Apogee: 103 km (64 mi).

1973 February 15 - . 01:11 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Prognoz 3 - . Payload: SO-M no. 3. Mass: 845 kg (1,862 lb). Nation: Russia. Agency: MOM. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: Prognoz. Spacecraft: Prognoz. Decay Date: 1976-12-31 . USAF Sat Cat: 6364 . COSPAR: 1973-009A. Apogee: 199,442 km (123,927 mi). Perigee: 896 km (556 mi). Inclination: 65.0000 deg. Period: 5,768.60 min. Solar flare monitor. Study of the processes of solar activity and of their influence on interplanetary space and the Earth's magnetosphere. .

1973 February 15 - . 02:16 GMT - . Launch Site: Natal. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • DLR N-BBVC-53 Aeronomy mission - . Nation: Germany. Agency: DFVLR. Apogee: 315 km (195 mi).

1973 February 16 - . 14:00 GMT - . Launch Site: Antigua. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para, Arcasonde - . Nation: USA. Agency: MRN. Apogee: 53 km (32 mi).

1973 February 17 - .
  • The Manned Spacecraft Center renamed the Lyndon B Johnson Space Center. - . Nation: USA. Related Persons: Johnson, Lyndon. Program: Apollo.

    The Manned Spacecraft Center was renamed the Lyndon B. Johnson Space Center by Public Law 93-8. The late President's interest and support of the space program began while he was Chairman of the Senate Committee on Aeronautical and Space Sciences and continued during his tenure as Vice President and President.


1973 February 17 - . 23:57 GMT - . Launch Site: Biscarosse. LV Family: Belier. Launch Vehicle: Dragon 3.
  • FU-211 EIDI-3 Ionosphere mission - . Nation: France. Agency: CNES. Apogee: 460 km (280 mi).

1973 February 19 - . 00:22 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 10.
  • Aeronomy / ionosphere / solar ultraviolet mission - . Nation: Japan. Agency: ISAS. Apogee: 236 km (146 mi).

1973 February 19 - . 13:17 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Composition Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 124 km (77 mi).

1973 February 20 - .
  • The OWS high-fidelity mockup arrived at MSFC. - . Nation: USA. Spacecraft Bus: Skylab. Spacecraft: Apollo ATM. The OWS high-fidelity mockup arrived at MSFC from McDonnell Douglas, Huntington Beach. It was updated for use as a systems engineering mockup along with an AM/MDA and the ATM dynamic test articles, which were modified at MSFC for this use. .

1973 February 21 - . Launch Site: Baikonur. Launch Complex: Baikonur LC101. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Phase 1 state trials flight - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 February 22 - . 03:49 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant IIIB.
  • Auroral plasma Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 207 km (128 mi).

1973 February 22 - . 13:04 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Electrons / La Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 126 km (78 mi).

1973 February 23 - . 09:38 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 9M.
  • Cesium Release Ionosphere mission - . Nation: Japan. Agency: ISAS. Apogee: 306 km (190 mi).

1973 February 23 - . 13:48 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Electrons / La Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 140 km (80 mi).

1973 February 24 - . 07:20 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant IIIB.
  • Auroral plasma Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 190 km (110 mi).

1973 February 26 - . 03:23 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant II.
  • Auroral VUV Aurora / aeronomy / ionosphere mission - . Nation: Canada. Agency: NRCC. Apogee: 132 km (82 mi).

1973 February 27 - . 10:40 GMT - . Launch Site: Wallops Island. LV Family: Terrier. Launch Vehicle: Terrier Recruit.
  • SAMS R487103 - . Nation: USA. Agency: NASA. Apogee: 4.00 km (2.40 mi).

1973 February 27 - . 10:40 GMT - . Launch Site: Wallops Island. LV Family: Terrier. Launch Vehicle: Terrier Recruit.
  • SAMS R487104 - . Nation: USA. Agency: NASA. Apogee: 4.00 km (2.40 mi).

1973 February 27 - . 15:00 GMT - . Launch Site: Thumba. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 91 km (56 mi).

1973 February 28 - . 04:37 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 549 - . Mass: 750 kg (1,650 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Tselina-O. Spacecraft: Tselina-O. Decay Date: 1980-06-29 . USAF Sat Cat: 6373 . COSPAR: 1973-010A. Apogee: 545 km (338 mi). Perigee: 513 km (318 mi). Inclination: 74.0000 deg. Period: 95.20 min. Possible ELINT satellite..

1973 February 28 - . 05:35 GMT - . Launch Site: Fort Churchill. LV Family: Aerobee. Launch Vehicle: Aerobee 150.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 180 km (110 mi).

1973 February 28 - . 20:00 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • X-ray parabolic telescope X-ray astronomy mission - . Nation: UK. Agency: BAC. Apogee: 199 km (123 mi).

1973 March - .
  • Tselina-2 ELINT satellite authorised - . Nation: Russia. Spacecraft Bus: Tselina-2. Spacecraft: Tselina-2.

    The improved model had an increased frequency range and on-board method of determining the position of fixed transmitters. The Tselina-2 prime contractors were TsNIRTI Minradioprom (M E Zaslovskiy) for the ELINT equipment and KB Yuzhnoye (KB-3, B S Khimrov) for the spacecraft bus. The launch vehicle was by OKB MEI Minvuza (A F Bogomolov) and the encrypted communications system by 0-TsNII KS MO.


1973 March 1 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 633. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-6 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 March 1 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 633. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-6 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 March 1 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 633. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-6 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 March 1 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 633. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • FOT-6 Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 March 1 - . 06:57 GMT - . Launch Site: Fort Churchill. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Auroral zone NO Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 135 km (83 mi).

1973 March 1 - . 12:40 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 550 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 10.00 days. Decay Date: 1973-03-11 . USAF Sat Cat: 6376 . COSPAR: 1973-011A. Apogee: 317 km (196 mi). Perigee: 206 km (128 mi). Inclination: 65.4000 deg. Period: 89.70 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 March 2 - . 14:00 GMT - . Launch Site: Antigua. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para, Arcasonde - . Nation: USA. Agency: MRN. Apogee: 58 km (36 mi).

1973 March 3 - . 06:05 GMT - . Launch Site: Thumba. LV Family: Belier. Launch Vehicle: Centaure 2A.
  • ISRO 5.19 Fields mission - . Nation: India. Agency: CNES, ISRO. Apogee: 125 km (77 mi).

1973 March 3 - . 06:50 GMT - . Launch Site: Thumba. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • ISRO 10.45 Ionosphere mission - . Nation: India. Agency: ISRO. Apogee: 158 km (98 mi).

1973 March 4 - . 18:00 GMT - . Launch Site: Koroni. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 March 5 - . Launch Site: White Sands. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 200 km (120 mi).

1973 March 5 - . 17:25 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 241 km (149 mi).

1973 March 6 - .
  • Apollo Spacecraft Program Office reorganized - . Nation: USA. Related Persons: Lunney. Program: Apollo. The Apollo Spacecraft Program Office, with Glynn S. Lunney as Manager, was reorganized. Lunney was also Manager for ASTP (Apollo/Soyuz Test Project), an assignment to which he had been appointed in June of 1972..

1973 March 6 - . 09:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 551 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 14.00 days. Decay Date: 1973-03-20 . USAF Sat Cat: 6378 . COSPAR: 1973-012A. Apogee: 296 km (183 mi). Perigee: 206 km (128 mi). Inclination: 65.0000 deg. Period: 89.50 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 March 6 - . 09:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC13. LV Family: Atlas. Launch Vehicle: Atlas SLV-3A Agena D.
  • OPS 6063 - . Payload: AFP-720 Rhyolite 2. Mass: 700 kg (1,540 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: ELINT. Spacecraft Bus: Rhyolite. Spacecraft: Rhyolite. USAF Sat Cat: 6380 . COSPAR: 1973-013A. Apogee: 35,855 km (22,279 mi). Perigee: 35,679 km (22,169 mi). Inclination: 0.2000 deg. Period: 1,435.10 min. Second launch of Rhyolite geostationary ELINT satellite..

1973 March 7 - . 09:00 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 88 km (54 mi).

1973 March 8 - . 18:00 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 170 km (100 mi).

1973 March 9 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • ABRES NTV-1 re-entry vehicle test flight - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 March 9 - . Launch Site: Baikonur. Launch Complex: Baikonur LC161/35. LV Family: R-36. Launch Vehicle: R-36 8K67MA.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 March 9 - . 21:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.
  • KH-9 no. 05 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: KH-9. Spacecraft: KH-9. Decay Date: 1973-05-17 . USAF Sat Cat: 6382 . COSPAR: 1973-014A. Apogee: 262 km (162 mi). Perigee: 150 km (90 mi). Inclination: 95.7000 deg. Period: 88.70 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1973 March 10 - . 14:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 92 km (57 mi).

1973 March 11 - . 20:00 GMT - . Launch Site: Koroni. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 March 12 - . Launch Site: Baikonur. Launch Complex: Baikonur LC173. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 March 13 - . 17:55 GMT - . Launch Site: White Sands. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 48 km (29 mi).

1973 March 14 - . 03:15 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • Imaging spectrograph Solar x-ray mission - . Nation: UK. Agency: BAC. Apogee: 226 km (140 mi).

1973 March 14 - . 18:08 GMT - . Launch Site: Wallops Island. LV Family: Viper. Launch Vehicle: Viper-Dart.
  • Starute,Datasonde - . Nation: USA. Agency: MRN. Apogee: 60 km (37 mi).

1973 March 15 - .
  • Post-Apollo Lunar Programs Office established - . Nation: USA. Program: Apollo. Flight: Apollo 15. Spacecraft Bus: Apollo LM. Spacecraft: Apollo ALSEP.

    A Lunar Programs Office, under which the Lunar Data Analysis and Synthesis Program would be conducted, was established in the Office of Space Science, NASA Hq. The office was responsible for continued operation and collection of data from the Apollo lunar surface experiment packages and the Apollo 15 subsatellite; Apollo surface and orbital science data analysis by principal investigators; development of selenodetic, cartographic, and photographic products; continued lunar laser ranging experiment; continued lunar sample analysis; lunar supporting research and technology; and advanced program studies.


1973 March 15 - .
  • San Juan Capistrano Meteorite Fall - . Nation: USA.

1973 March 15 - . Launch Site: Biscarosse. Launch Complex: Biscarosse BLB. LV Family: MSBS. Launch Vehicle: SSBS S02.
  • S02C 2602 test - . Nation: France. Agency: DMA. Apogee: 1,000 km (600 mi).

1973 March 16 - . 10:40 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 249 km (154 mi).

1973 March 19 - .
  • Second Skylab-B program between considered to fill late 1970's gap between the Apollo-Soyuz Test Project and the Space Shuttle. - . Nation: USA. Program: Skylab. Flight: Skylab B.

    Consideration was being given to the feasibility of a second set of Skylab missions (designated Skylab-B) during the interval between the Apollo-Soyuz Test Project in 1975 and the start of Space Shuttle operations late in 1979. The inherent worth of a Skylab-B was recognized, but officials were reluctant to recommend it, on the premise that it would be unwise to allow it to delay or displace the development of the Space Shuttle and other programs already included in the FY 1974 budget.


1973 March 20 - . 03:41 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Dawn chorus Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 129 km (80 mi).

1973 March 20 - . 04:52 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • Echelle spectrograph Solar ultraviolet mission - . Nation: UK. Agency: BAC. Apogee: 242 km (150 mi).

1973 March 20 - . 11:20 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Vostok 8A92M.
  • Meteor 1-14 - . Payload: Meteor M no. 14. Mass: 3,800 kg (8,300 lb). Nation: Russia. Agency: MOM. Class: Earth. Type: Weather satellite. Spacecraft Bus: Meteor. Spacecraft: Meteor M 11F614. USAF Sat Cat: 6392 . COSPAR: 1973-015A. Apogee: 878 km (545 mi). Perigee: 860 km (530 mi). Inclination: 81.2000 deg. Period: 102.30 min. Acquisition of meteorological information needed for use by the weather service. .

1973 March 21 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-16 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 March 21 - . 06:00 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 225 km (139 mi).

1973 March 22 - . 06:02 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 240 km (140 mi).

1973 March 22 - . 10:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 552 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 12.00 days. Decay Date: 1973-04-03 . USAF Sat Cat: 6394 . COSPAR: 1973-016A. Apogee: 308 km (191 mi). Perigee: 202 km (125 mi). Inclination: 72.0000 deg. Period: 89.60 min. Area survey photo reconnaissance satellite; returned film capsule; separated Nauka autonomous subsatellite 16KS No 162 / 2L which tested Kondor control system for Yantar satellite..
  • Nauka Cosmos 552 - . Payload: Nauka 16KS No. 2L. Nation: Russia. Agency: MOM. Spacecraft Bus: Nauka. Spacecraft: Nauka. Decay Date: 1973-04-09 . USAF Sat Cat: 6397 . COSPAR: 1973-016C. Apogee: 283 km (175 mi). Perigee: 192 km (119 mi). Inclination: 72.8000 deg. Period: 89.25 min.

1973 March 22 - . 12:12 GMT - . Launch Site: Poker Flat. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Auroral mission - . Nation: USA. Agency: AFCRL. Apogee: 183 km (113 mi).

1973 March 22 - . 17:43 GMT - . Launch Site: Villa Reynolds. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • UK SL1182 Earth imaging mission - . Nation: UK. Agency: BAC. Apogee: 240 km (140 mi).

1973 March 23 - . 15:20 GMT - . Launch Site: Thule AFB. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Chaff, Datasonde - . Nation: USA. Agency: MRN. Apogee: 50 km (31 mi).

1973 March 24 - . 03:35 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170A.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 200 km (120 mi).

1973 March 24 - . 10:31 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Paiute Tomahawk.
  • ICECAP 73A Auroral mission - . Nation: USA. Agency: USAF CRL. Apogee: 213 km (132 mi).

1973 March 25 - . 17:47 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral mission - . Nation: Japan. Agency: NIPR. Apogee: 114 km (70 mi).

1973 March 26 - . 12:35 GMT - . Launch Site: El Arenosillo. LV Family: Skua. Launch Vehicle: Skua 2.
  • Ionosphere mission - . Nation: UK. Agency: DLR, INTA. Apogee: 79 km (49 mi).

1973 March 27 - .
1973 March 27 - .
  • Almaz Engineer Cosmonaut Training Group 2 selected. - . Nation: Russia. Related Persons: Yuyukov. The group was selected to provide flight engineers for planned Almaz military space station missions..

1973 March 27 - . 09:37 GMT - . Launch Site: Poker Flat. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Ionosphere mission - . Nation: USA. Agency: AFCRL. Apogee: 181 km (112 mi).

1973 March 27 - . 09:38 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Paiute Tomahawk.
  • ICECAP 73B Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 235 km (146 mi).

1973 March 27 - . 12:58 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 233 km (144 mi).

1973 March 28 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-17 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 March 28 - . 17:51 GMT - . Launch Site: Villa Reynolds. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • Earth imaging mission - . Nation: UK. Agency: BAC. Apogee: 240 km (140 mi).

1973 March 29 - . 15:38 GMT - . Launch Site: Green River. LV Family: Athena RTV. Launch Vehicle: Athena H.
  • RVTO-3B-3 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1973 March 29 - . 17:23 GMT - . Launch Site: Green River. LV Family: Athena RTV. Launch Vehicle: Athena H.
  • RVTO-3B-1 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1973 March 30 - . 10:43 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170A.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 184 km (114 mi).

1973 March 30 - . 12:34 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 243 km (150 mi).

1973 March 31 - . 03:17 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Dawn chorus Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 126 km (78 mi).

1973 March 31 - . 12:27 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Plasma mission - . Nation: USA. Agency: NASA. Apogee: 232 km (144 mi).

1973 April 1 - .
  • Birth of Sergey Aleksandrovich Volkov - . Nation: Ukraine. Related Persons: Volkov, Sergey. Ukrainian pilot cosmonaut. Flew on ISS EO-17. Son of cosmonaut Aleksandr Volkov..

1973 April 1 - .
  • Death of Bruno Heusinger - . Nation: Germany, USA. Related Persons: Heusinger. German engineer in WW2, member of the Rocket Team in the United States thereafter..

1973 April 1 - . Launch Site: White Sands. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Nation: USA. Agency: USN. Apogee: 100 km (60 mi).

1973 April 2 - . 17:44 GMT - . Launch Site: Point Mugu. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para - . Nation: USA. Agency: MRN. Apogee: 70 km (43 mi).

1973 April 3 - .
  • Studies on controlled deorbit of the Skylab 1 Orbital Workshop. - . Nation: USA. Program: Skylab. Spacecraft Bus: Skylab. Spacecraft: Skylab.

    Studies were conducted to determine the feasibility of conducting a controlled deorbit of the Orbital Workshop. Three methods were considered: (l) using the CSM service propulsion system; (2) using the CSM reaction control system; and (3) implementing an S-II (Saturn V second stage) deorbit. The service propulsion system deorbit was assessed as not feasible; the reaction control system deorbit was considered technically feasible but, like the service propulsion system, it had an inherent program and crew safety risk associated with it. Implementation of an S-II deorbit would have serious time and cost impacts on the program. A 1970 study, which indicated that the probability of damage from the deorbiting Skylab was so small that changes which caused major impact in cost and schedule were not worth pursuing, was confirmed.


1973 April 3 - . 06:09 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 131 km (81 mi).

1973 April 3 - . 06:54 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 132 km (82 mi).

1973 April 3 - . 08:14 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 137 km (85 mi).

1973 April 3 - . 09:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K.
  • Salyut 2 - . Payload: Almaz s/n 101-01. Mass: 18,500 kg (40,700 lb). Nation: Russia. Agency: MOM. Program: Almaz. Class: Manned. Type: Manned space station. Spacecraft Bus: Almaz. Spacecraft: Almaz OPS. Duration: 54.62 days. Decay Date: 1973-05-28 . USAF Sat Cat: 6398 . COSPAR: 1973-017A. Apogee: 248 km (154 mi). Perigee: 216 km (134 mi). Inclination: 51.6000 deg. Period: 89.10 min.

    The first flight of the Almaz manned military space station. In January 1973 the first Almaz OPS was delivered to Baikonur. Launch and initial orbital checkout went according to plan. But before a crew could be launched the station depressurized. It was concluded that a short in electrical equipment started a fire in pressure vessel, leading to rupture of hull and depressurization. An alternate theory was that debris from an explosion of the third stage of Proton penetrated the hull. Control was lost on April 25, 1973, and the OPS cased operations on 29 April. Decayed May 28, 1973. Initial crew was to have been Popovich and Artyukhin.
    Officially: Testing of improved design, on-board systems and equipment; conduct of scientific and technical research and experiments. Additional Details: here....


1973 April 3 - . 09:48 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 139 km (86 mi).

1973 April 3 - . 14:52 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 140 km (80 mi).

1973 April 3 - . 16:15 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 136 km (84 mi).

1973 April 3 - . 17:20 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 245 km (152 mi).

1973 April 3 - . 17:44 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • D-Region / Solar La / X Ionosphere-solar mission Ionosphere-solar mission - . Nation: UK. Agency: SRC. Apogee: 134 km (83 mi).

1973 April 4 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-18 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 April 4 - . 01:00 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 87 km (54 mi).

1973 April 5 - . 11:11 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 2-05 - . Payload: Molniya-2. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-2. Decay Date: 1979-01-06 . USAF Sat Cat: 6418 . COSPAR: 1973-018A. Apogee: 39,822 km (24,744 mi). Perigee: 532 km (330 mi). Inclination: 65.2000 deg. Period: 717.70 min.

    Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).


1973 April 6 - . Launch Site: Baikonur. Launch Complex: Baikonur LC177. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 April 6 - . Launch Site: Baikonur. Launch Complex: Baikonur LC104. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 April 6 - . 02:11 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
  • Pioneer 11 - . Payload: Pioneer G. Mass: 259 kg (570 lb). Nation: USA. Agency: NASA Ames. Program: Pioneer. Class: Outer planets. Type: Outer planets probe. Spacecraft Bus: Pioneer 10-11. Spacecraft: Pioneer 10-11. USAF Sat Cat: 6421 . COSPAR: 1973-019A.

    NASA's Atlas/Centaur was launched from Cape Canaveral carrying Pioneer 11 (Jupiter-Saturn). This was the first SLV-3D Atlas booster (vehicle 5011D), and the first SLV-3 to use the new 370,000-pound thrust MA-5 booster package for improved payload performance. Jupiter flyby December 1974; Saturn flyby September 1979. Solar system escape trajectory. Pioneer 11 was the second mission to investigate Jupiter and the outer solar system and the first to explore the planet Saturn and its main rings. Pioneer 11, like Pioneer 10, used Jupiter's gravitational field to alter its trajectory radically. It passed close to Saturn and then it followed an escape trajectory from the solar system. During its closest approach, December 4, 1974, Pioneer 11 passed to within 34,000 km of Jupiter's cloud tops. It passed by Saturn on September 1, 1979, at a distance of 21,000 km from Saturn's cloud tops. The spacecraft has operated on a backup transmitter since launch. Instrument power sharing began in February 1985 due to declining RTG power output. Science operations and daily telemetry ceased on September 30, 1995 when the RTG power level was insufficient to operate any experiments. As of the end of 1995 the spacecraft was located at 44.7 AU from the Sun at a nearly asymptotic latitude of 17.4 degrees above the solar equatorial plane and was heading outward at 2.5 AU/year. Routine tracking and project data processing operations were terminated on March 31, 1997 for budget reasons.


1973 April 7 - . 09:00 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 85 km (52 mi).

1973 April 8 - . Launch Site: Baikonur. Launch Complex: Baikonur LC162/36. LV Family: R-36. Launch Vehicle: R-36 8K67PM. FAILURE: Failure.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 April 9 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • Mod 2 state trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 April 10 - . 06:59 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 198 km (123 mi).

1973 April 11 - . 17:50 GMT - . Launch Site: Thumba. LV Family: Belier. Launch Vehicle: Centaure 2A.
  • ISRO 5.20 Fields mission - . Nation: India. Agency: ISRO. Apogee: 151 km (93 mi).

1973 April 12 - . 11:49 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 553 - . Payload: DS-P1-Yu s/n 55. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1973-11-12 . Decay Date: 1973-11-11 . USAF Sat Cat: 6427 . COSPAR: 1973-020A. Apogee: 494 km (306 mi). Perigee: 272 km (169 mi). Inclination: 71.0000 deg. Period: 92.20 min. Development of systems for air defence and the control of outer space..

1973 April 13 - . 15:00 GMT - . Launch Site: Kerguelen. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 85 km (52 mi).

1973 April 16 - .
  • Death of Anatoli Ivanovich Semenov - . Nation: Russia. Related Persons: Semenov. Russian officer. Commander of GURVO 1954-1964..

1973 April 16 - . 10:04 GMT - . Launch Site: White Sands. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Photometers Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 195 km (121 mi).

1973 April 16 - . 11:58 GMT - . Launch Site: White Sands. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Photometers Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 209 km (129 mi).

1973 April 17 - . 10:30 GMT - . Launch Site: Kourou. Launch Complex: Kourou ALFS. LV Family: Veronique. Launch Vehicle: Veronique 61M.
  • FU-200 Solar ultraviolet Solar extreme ultraviolet mission - . Nation: France. Agency: CNES. Apogee: 200 km (120 mi). FU200 3SUV, UV solar astronomy / Ptr mission..

1973 April 17 - . 15:35 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • Mod collimator X-ray astronomy mission - . Nation: UK. Agency: BAC. Apogee: 214 km (132 mi).

1973 April 18 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-19 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 April 18 - . 04:25 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF02. LV Family: Minuteman. Launch Vehicle: Minuteman 2.
  • FOT GT112M Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 April 19 - . 08:59 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 554 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 38.00 days. Decay Date: 1973-05-07 . USAF Sat Cat: 6432 . COSPAR: 1973-021A. Apogee: 304 km (188 mi). Perigee: 194 km (120 mi). Inclination: 72.9000 deg. Period: 89.50 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable; exploded in orbit..

1973 April 19 - . 10:19 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar LC86/4. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Intercosmos 9 - . Payload: DS-U2-IK s/n . Mass: 400 kg (880 lb). Nation: Russia. Agency: IK. Program: DS. Class: Earth. Type: Ionosphere satellite. Spacecraft Bus: DS. Spacecraft: DS-U2-IK. Completed Operations Date: 1973-10-15 . Decay Date: 1973-10-15 . USAF Sat Cat: 6433 . COSPAR: 1973-022A. Apogee: 1,526 km (948 mi). Perigee: 199 km (123 mi). Inclination: 48.4000 deg. Period: 102.20 min. Also designated Intercosmos Copernicus 500. Investigated solar radio-frequency radiation and the characteristics of the earth's ionosphere..

1973 April 20 - . 23:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 1914.
  • Anik A2 - . Payload: Telesat 2. Mass: 272 kg (599 lb). Nation: Canada. Agency: Telesat. Program: Anik. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: HS 333. Spacecraft: HS 333. Completed Operations Date: 1982-10-28 . USAF Sat Cat: 6437 . COSPAR: 1973-023A. Apogee: 35,952 km (22,339 mi). Perigee: 35,886 km (22,298 mi). Inclination: 13.7000 deg. Period: 1,442.90 min.

    Anik I and Anik II also registered as United States objects. .The satellites, act as space repeaters capable of receiving transmissions from earth stations and retransmitting them to other earth stations in Canada. The antenna coverage of the satellite pr ovides the capability of serving virtually all of Canada. Anik I and II had weights of 1240.59 lb and 1246.48 lb. Each satellite has 12 RF channels each capable of transmitting a color television signal or up to 900 one-way voice channels. Positioned in geosynchronous orbit over the Americas at 109 deg W in 1973-1979; over the Americas at 106 deg W in 1979-1981; over the Americas at 114 deg W in 1981-1982 As of 26 August 2001 located at 0.59 deg E drifting at 1.690 deg W per day. As of 2007 Mar 9 located at 150.94E drifting at 1.684W degrees per day.


1973 April 21 - . 09:00 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 83 km (51 mi).

1973 April 22 - . 18:25 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral mission - . Nation: Japan. Agency: NIPR. Apogee: 124 km (77 mi).

1973 April 23 - . 21:00 GMT - . Launch Site: Barking Sands. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 61 km (37 mi).

1973 April 24 - . 04:40 GMT - . Launch Site: Fort Sherman. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 67 km (41 mi).

1973 April 25 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF03. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • HK-2 - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 April 25 - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/19. Launch Pad: LC90/pad?. LV Family: R-36. Launch Vehicle: Tsiklon-2. FAILURE: Payload propulsion system failed; no orbit.. Failed Stage: P.
  • RORSAT failure - . Mass: 3,800 kg (8,300 lb). Nation: Russia. Agency: RVSN. Program: RORSAT. Class: Surveillance. Type: Military naval surveillance radar satellite. Spacecraft Bus: Kosmoplan. Spacecraft: US-A. Decay Date: 1973-04-25 . COSPAR: F730425A. Ocean surveillance; nuclear powered. Last launch of original US-A design by Savin's KB. American 'sniffer' aircraft flew over the Pacific after this failure looking for radioisotopes traces in order to characterise the reactor..

1973 April 25 - . Launch Site: Yurya. LV Family: R-16. Launch Vehicle: R-16U.
  • Nation: Russia. Agency: RVSN. Apogee: 1,210 km (750 mi).

1973 April 25 - . 10:45 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 555 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 12.00 days. Decay Date: 1973-05-07 . USAF Sat Cat: 6440 . COSPAR: 1973-024A. Apogee: 230 km (140 mi). Perigee: 216 km (134 mi). Inclination: 81.0000 deg. Period: 88.90 min. Area survey photo reconnaissance satellite; returned film capsule; separated science capsule..
  • Nauka Cosmos 555 - . Payload: Nauka. Nation: Russia. Agency: MOM. Spacecraft Bus: Nauka. Spacecraft: Nauka. Decay Date: 1973-05-09 . USAF Sat Cat: 6445 . COSPAR: 1973-024D. Apogee: 204 km (126 mi). Perigee: 192 km (119 mi). Inclination: 81.3000 deg. Period: 88.45 min.

1973 April 26 - . 06:20 GMT - . Launch Pad: Pacific Ocean, 27.0 N x 125.0 W. Launch Platform: T-AGM-8. LV Family: Sandhawk. Launch Vehicle: Hydra Sandhawk.
  • LRL BOX-18 X-ray astronomy mission - . Nation: USA. Agency: USN NMC. Apogee: 262 km (162 mi).

1973 April 27 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF25. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • OT GT21GB operational test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 April 27 - . 04:50 GMT - . Launch Site: Green River. LV Family: Athena RTV. Launch Vehicle: Athena H.
  • RVTO-3B-4 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1973 April 27 - . 04:53 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee 150.
  • Ultraviolet Absorption Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 121 km (75 mi).

1973 April 28 - . 22:48 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 654. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • Demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 April 29 - . Launch Site: Baikonur. Launch Complex: Baikonur LC103. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 April 30 - . 17:37 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para, Arcasonde - . Nation: USA. Agency: MRN. Apogee: 55 km (34 mi).

1973 May 1 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Test mission - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 May 2 - . 09:40 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 93 km (57 mi).

1973 May 3 - . 23:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF22. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • OT GT22GB operational test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 May 4 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-24 Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 May 5 - . 07:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 556 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 9.00 days. Decay Date: 1973-05-14 . USAF Sat Cat: 6446 . COSPAR: 1973-025A. Apogee: 240 km (140 mi). Perigee: 199 km (123 mi). Inclination: 81.3000 deg. Period: 88.80 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 May 6 - .
  • Death of Randy Claggett. Massive radiation dose during attempt to return to earth from lunar surface aboard Apollo 18. - . Nation: USA. Related Persons: Claggett. American phantom cosmonaut. Fictional Apollo 18 mission commander who died on the lunar surface in Michener's novel Space and the resulting television mini-series..

1973 May 7 - . 15:00 GMT - . Launch Site: Kerguelen. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 84 km (52 mi).

1973 May 8 - . 00:45 GMT - . Launch Site: Kwajalein. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 76 km (47 mi).

1973 May 9 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-20 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 May 9 - . 23:25 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 655. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • Demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 May 10 - . 02:00 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 85 km (52 mi).

1973 May 11 - . 00:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K.
  • Cosmos 557 - . Payload: Zarya s/n 123. Mass: 19,400 kg (42,700 lb). Nation: Russia. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned space station. Spacecraft Bus: Almaz. Spacecraft: Salyut 4. Duration: 10.98 days. Decay Date: 1973-05-22 . USAF Sat Cat: 6498 . COSPAR: 1973-026A. Apogee: 225 km (139 mi). Perigee: 206 km (128 mi). Inclination: 51.6000 deg. Period: 88.90 min. Salyut failure. Unsuccessful mission. Salyut out of control. Decayed May 22, 1973. Was to have been manned by initial crew of Leonov and Kubasov. Last chance to upstage Skylab, launched three days later..

1973 May 12 - . 12:41 GMT - . Launch Site: Andoya. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • DLR A-BBVC-51 Erna Aeronomy /ionosphere mission - . Nation: Germany. Agency: DFVLR. Apogee: 305 km (189 mi).

1973 May 13 - . 13:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC43. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 79 km (49 mi).

1973 May 14 - . 17:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. Launch Platform: LUT2. LV Family: Saturn V. Launch Vehicle: Saturn V.
  • Skylab 1 - . Payload: Skylab Orbital Workshop. Mass: 74,783 kg (164,868 lb). Nation: USA. Agency: NASA Huntsville. Program: Skylab. Class: Manned. Type: Manned space station. Spacecraft Bus: Skylab. Spacecraft: Skylab. Decay Date: 1979-07-11 . USAF Sat Cat: 6633 . COSPAR: 1973-027A. Apogee: 439 km (272 mi). Perigee: 427 km (265 mi). Inclination: 50.0000 deg. Period: 93.20 min.

    First and only US space station to date. Project began life as Apollo Orbital Workshop - outfitting of an S-IVB stage with docking adapter with equipment launched by several subsequent S-1B launches. Curtailment of the Apollo moon landings meant that surplus Saturn V's were available, so the pre-equipped, five times heavier, and much more capable Skylab resulted.

    An unexpected telemetry indication of meteoroid shield deployment and solar array wing 2 beam fairing separation was received 1 minute and 3 seconds after liftoff. However, all other systems of the OWS appeared normal, and the OWS was inserted into a near-circular Earth orbit of approximately 435 km altitude. The payload shroud was jettisoned, and the ATM with its solar array was deployed as planned during the first orbit. Deployment of the Workshop solar array and the meteoroid shield was not successful. In fact the xternal solar/meteoroid shield had ripped off 63 seconds into ascent, tearing away one solar panel wing and debris jamming the remaining panel. Without shield temperatures soared in station. Repairs by crews led to virtually all mission objectives being met.

    Following the final manned phase of the Skylab mission, ground controllers performed some engineering tests of certain Skylab systems--tests that ground personnel were reluctant to do while men were aboard. Results from these tests helped to determine causes of failures during the mission and to obtain data on long term degradation of space systems.

    Upon completion of the engineering tests, Skylab was positioned into a stable attitude and systems were shut down. It was expected that Skylab would remain in orbit eight to ten years. It was to have been visited by an early shuttle mission, reboosted into a higher orbit, and used by space shuttle crews. But delays in the first flight of the shuttle made this impossible.

    On July 11, 1979, Skylab disintegrated when it re-entered the earth's atmosphere after a worldwide scare over its pending crash. The debris stretched from the south-east Indian Ocean into Western Australia. Additional Details: here....


1973 May 15 - . 19:02 GMT - . Launch Site: Poker Flat. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 53 km (32 mi).

1973 May 16 - . 09:19 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant VB.
  • Tower modification test / aeronomy / ionosphere / solar mission - . Nation: Canada. Agency: NRCC. Apogee: 301 km (187 mi).

1973 May 16 - . 16:40 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 24B.
  • OPS 2093 - . Payload: KH-8 no. 38 / Agena D. Mass: 3,000 kg (6,600 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. Spacecraft: KH-8. Decay Date: 1973-06-13 . USAF Sat Cat: 6640 . COSPAR: 1973-028A. Apogee: 352 km (218 mi). Perigee: 136 km (84 mi). Inclination: 110.5000 deg. Period: 89.40 min. The 40th Titan IIIB/Agena D was launched from Vandenberg AFB by the Space and Missile Test Center's 6595th Space Test Group. KH-8 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1973 May 17 - . 13:19 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 558 - . Payload: DS-P1-Yu s/n 65. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1973-12-25 . Decay Date: 1973-12-22 . USAF Sat Cat: 6645 . COSPAR: 1973-029A. Apogee: 501 km (311 mi). Perigee: 269 km (167 mi). Inclination: 71.0000 deg. Period: 92.30 min. Development of systems for air defence and the control of outer space..

1973 May 18 - . 11:00 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/3. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 559 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 5.00 days. Decay Date: 1973-05-23 . USAF Sat Cat: 6647 . COSPAR: 1973-030A. Apogee: 325 km (201 mi). Perigee: 204 km (126 mi). Inclination: 65.4000 deg. Period: 89.80 min. First flight of Soyuz U launch vehicle. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 May 18 - . 16:00 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Test / aeronomy / solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 267 km (165 mi).

1973 May 19 - . 11:11 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • XRB scintillator tel X-ray astronomy mission - . Nation: UK. Agency: SRC. Apogee: 137 km (85 mi).

1973 May 19 - . 23:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 656. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • Demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 May 20 - . 01:17 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC43. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 61 km (37 mi).

1973 May 21 - . Launch Site: Kourou. Launch Complex: Kourou Diamant. LV Family: Diamant. Launch Vehicle: Diamant B. FAILURE: Failure - fairing did not jettison.. Failed Stage: S.
  • Castor (D 5A) - . Payload: D 5A. Nation: France. Agency: CNES. Class: Technology. Type: Navigation technology satellite. Spacecraft Bus: D. Spacecraft: D. Decay Date: 1972-05-21 . COSPAR: F730521A.

1973 May 22 - .
  • A Skylab 1 Board of Investigation was established to investigate the anomalies that occurred during the launch and Earth orbit of SL-1. - . Nation: USA. Program: Skylab. Bruce T. Lundin (Lewis Research Center) was named chairman of the Board..

1973 May 23 - . Launch Site: Baikonur. Launch Complex: Baikonur LC161/35. LV Family: R-36. Launch Vehicle: R-36 8K67MA.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 May 23 - . 10:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 560 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-06-05 . USAF Sat Cat: 6652 . COSPAR: 1973-031A. Apogee: 314 km (195 mi). Perigee: 203 km (126 mi). Inclination: 72.9000 deg. Period: 89.70 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 May 23 - . 16:30 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee 150A.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 111 km (68 mi).

1973 May 24 - . Launch Site: Baikonur. Launch Complex: Baikonur LC101. LV Family: R-36M. Launch Vehicle: R-36M 15A14. FAILURE: Failure.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 May 25 - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M. FAILURE: Launch vehicle failed to orbit - unknown cause.. Failed Stage: U.
1973 May 25 - . 05:50 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 178 km (110 mi).

1973 May 25 - . 13:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39B. Launch Platform: LUT1. LV Family: Saturn I. Launch Vehicle: Saturn IB.
  • Skylab 2 - . Call Sign: Skylab. Crew: Conrad, Kerwin, Weitz. Backup Crew: McCandless, Musgrave, Schweickart. Payload: Apollo CSM 116. Mass: 19,979 kg (44,046 lb). Nation: USA. Related Persons: Conrad, Kerwin, McCandless, Musgrave, Schweickart, Weitz. Agency: NASA Houston. Program: Skylab. Class: Moon. Type: Manned lunar spacecraft. Flight: Skylab 2. Spacecraft Bus: Apollo CSM. Spacecraft: Apollo CSM. Duration: 28.03 days. Decay Date: 1973-06-22 . USAF Sat Cat: 6655 . COSPAR: 1973-032A. Apogee: 440 km (270 mi). Perigee: 425 km (264 mi). Inclination: 50.0000 deg. Period: 93.20 min.

    Epic repair mission which brought Skylab into working order. Included such great moments as Conrad being flung through space by the whiplash after heaving on the solar wing just as the debris constraining it gave way; deployment of a lightweight solar shield, developed in Houston in one week, which brought the temperatures down to tolerable levels. With this flight US again took manned spaceflight duration record.

    Skylab 2 , consisting of a modified Apollo CSM payload and a Saturn IB launch vehicle, was inserted into Earth orbit approximately 10 minutes after liftoff. The orbit achieved was 357 by 156 km and, during a six-hour period following insertion, four maneuvers placed the CSM into a 424 by 415 km orbit for rendezvous with the Orbital Workshop. Normal rendezvous sequencing led to stationkeeping during the fifth revolution followed by a flyaround inspection of the damage to the OWS. The crew provided a verbal description of the damage in conjunction with 15 minutes of television coverage. The solar array system wing (beam) 2 was completely missing. The solar array system wing (beam) 1 was slightly deployed and was restrained by a fragment of the meteoroid shield. Large sections of the meteoroid shield were missing. Following the flyaround inspection, the CSM soft-docked with the OWS at 5:56 p.m. EDT to plan the next activities. At 6:45 p.m. EDT the CSM undocked and extravehicular activity was initiated to deploy the beam 1 solar array. The attempt failed. Frustration of the crew was compounded when eight attempts were required to achieve hard docking with the OWS. The hard dock was made at 11:50 p.m. EDT, terminating a Skylab 2 first-day crew work period of 22 hours.


1973 May 25 - . 13:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 561 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 12.00 days. Decay Date: 1973-06-06 . USAF Sat Cat: 6657 . COSPAR: 1973-033A. Apogee: 295 km (183 mi). Perigee: 206 km (128 mi). Inclination: 65.4000 deg. Period: 89.50 min. Area survey photo reconnaissance satellite; returned film capsule; separated gamma ray telescope experiment capsule..
  • Nauka Cosmos 561 - . Payload: Nauka. Nation: Russia. Agency: MOM. Spacecraft Bus: Nauka. Spacecraft: Nauka. Decay Date: 1973-06-20 . USAF Sat Cat: 6662 . COSPAR: 1973-033D. Apogee: 281 km (174 mi). Perigee: 205 km (127 mi). Inclination: 65.3000 deg. Period: 89.36 min.

1973 May 25 - . 15:20 GMT - . Launch Site: Natal. LV Family: Sergeant. Launch Vehicle: Castor Lance.
  • Infrared Radiometer Aeronomy infrared mission - . Nation: USA. Agency: AFCRL. Apogee: 569 km (353 mi).

1973 May 26 - . 00:40 GMT - .
  • EVA Skylab 2-1 - . Crew: Weitz. EVA Duration: 0.0257 days. Nation: USA. Related Persons: Weitz. Program: Skylab. Class: Moon. Type: Manned lunar spacecraft. Flight: Skylab 2. Spacecraft Bus: Apollo CSM. Spacecraft: Apollo CSM. Stand-Up External Vehicular Activity. First and failed attempt to release jammed solar panel..

1973 May 27 - June 22 - .
  • Skylab-2 crew began to activate experiments. - . Nation: USA. Program: Skylab. Flight: Skylab 2. Following the successful deployment of the parasol, the Skylab-2 crew began to transfer and store equipment and activate experiments.. Additional Details: here....

1973 May 27 - .
  • A Skylab Program Director's meeting was held to identify further actions required for the SL 2 mission and actions required for the SL-3 mission. - . Nation: USA. Program: Skylab. Flight: Skylab 2.

    The following agreements were reached: The parasol installed on the OWS would not be jettisoned until a replacement thermal shield was on board, if a twin-boom thermal shield had not been deployed during the SL-2 mission. The twin-boom sunshade and the JSC sail would be retained in the OWS at the end of the SL-2 mission.


1973 May 28 - . 14:57 GMT - . Launch Site: Fort Churchill. LV Family: Loki. Launch Vehicle: Loki Dart.
  • Starute, Datasonde Meteorological mission - . Nation: USA. Agency: MRN. Apogee: 63 km (39 mi).

1973 May 29 - . Launch Site: Plesetsk. LV Family: R-16. Launch Vehicle: R-16U.
  • UBP R-16 PL73-03 - . Nation: Russia. Agency: RVSN. Apogee: 1,210 km (750 mi).

1973 May 29 - . Launch Site: Kostroma. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 May 29 - . 10:16 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Vostok 8A92M.
  • Meteor 1-15 - . Payload: Meteor M no. 15. Mass: 3,800 kg (8,300 lb). Nation: Russia. Agency: MOM. Class: Earth. Type: Weather satellite. Spacecraft Bus: Meteor. Spacecraft: Meteor M 11F614. USAF Sat Cat: 6659 . COSPAR: 1973-034A. Apogee: 879 km (546 mi). Perigee: 845 km (525 mi). Inclination: 81.2000 deg. Period: 102.20 min. Acquisition of meteorological information needed for use by the weather service. .

1973 May 29 - . 20:05 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy mission? - . Nation: Russia. Agency: AN. Apogee: 162 km (100 mi).

1973 May 30 - . 09:00 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 91 km (56 mi).

1973 May 31 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF09. Launch Pad: LF09?. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • PVM-4 test - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi). The 50th Minuteman III (LGM-30G) missile to be launched from Vandenberg was the third Production Verification Missile (PVM) fired by the Space and Missile Test Center (SAMTEC) in support of the Deputy for Minuteman (MN) PVM program. .

1973 June 1 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Test mission - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 June 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 June 2 - . 16:51 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170A.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 175 km (108 mi).

1973 June 3 - .
  • Death of Vladimir Nikolayevich Benderov at Le Bourget, France. Crash of a Tu-144 supersonic transport during an aviation demonstration in Le Bourget. - . Nation: Russia. Related Persons: Benderov. Russian test pilot. Graduated from the Zhukovsky, 1950. Worked as an engineer and senior test pilot for Tupolev. Flew MiG-21 Tu-144 wing testbed. Proposed on 1964.06.29 as cosmonaut for Voskhod flights, but not confirmed..

1973 June 4 - . 17:10 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC. FAILURE: Failure.
  • CALROC 1 Solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 132 km (82 mi).

1973 June 5 - . Launch Site: Baikonur. Launch Complex: Baikonur LC173. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100. FAILURE: Failure.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 June 5 - . 11:29 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 562 - . Payload: DS-P1-Yu s/n 66. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1974-01-08 . Decay Date: 1974-01-07 . USAF Sat Cat: 6665 . COSPAR: 1973-035A. Apogee: 483 km (300 mi). Perigee: 270 km (160 mi). Inclination: 70.0000 deg. Period: 92.00 min. Development of systems for air defence and the control of outer space..

1973 June 6 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 563 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 12.00 days. Decay Date: 1973-06-18 . USAF Sat Cat: 6667 . COSPAR: 1973-036A. Apogee: 298 km (185 mi). Perigee: 206 km (128 mi). Inclination: 65.4000 deg. Period: 89.50 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 June 7 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-22 Target mission - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 June 7 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-22 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 June 7 - . 15:15 GMT - .
1973 June 8 - . 15:50 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 564 - . Payload: Strela-1M no. 41. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6675 . COSPAR: 1973-037A. Apogee: 1,480 km (910 mi). Perigee: 1,395 km (866 mi). Inclination: 74.0000 deg. Period: 114.60 min. Eight satellites launched by a single carrier rocket..
  • Cosmos 570 - . Payload: Strela-1M no. 47. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6681 . COSPAR: 1973-037G. Apogee: 1,481 km (920 mi). Perigee: 1,337 km (830 mi). Inclination: 74.0000 deg. Period: 114.00 min.
  • Cosmos 565 - . Payload: Strela-1M no. 42. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6676 . COSPAR: 1973-037B. Apogee: 1,489 km (925 mi). Perigee: 1,449 km (900 mi). Inclination: 74.0000 deg. Period: 115.30 min.
  • Cosmos 566 - . Payload: Strela-1M no. 43. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6677 . COSPAR: 1973-037C. Apogee: 1,482 km (920 mi). Perigee: 1,433 km (890 mi). Inclination: 74.0000 deg. Period: 115.10 min.
  • Cosmos 567 - . Payload: Strela-1M no. 44. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6678 . COSPAR: 1973-037D. Apogee: 1,483 km (921 mi). Perigee: 1,412 km (877 mi). Inclination: 74.0000 deg. Period: 114.80 min.
  • Cosmos 568 - . Payload: Strela-1M no. 45. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6679 . COSPAR: 1973-037E. Apogee: 1,480 km (910 mi). Perigee: 1,375 km (854 mi). Inclination: 74.0000 deg. Period: 114.40 min.
  • Cosmos 571 - . Payload: Strela-1M no. 48. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6682 . COSPAR: 1973-037H. Apogee: 1,479 km (919 mi). Perigee: 1,319 km (819 mi). Inclination: 74.0000 deg. Period: 113.80 min.
  • Cosmos 569 - . Payload: Strela-1M no. 46. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6680 . COSPAR: 1973-037F. Apogee: 1,480 km (910 mi). Perigee: 1,358 km (843 mi). Inclination: 74.0000 deg. Period: 114.20 min.

1973 June 9 - . 14:00 GMT - . Launch Site: Molodezhnaya. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 90 km (55 mi).

1973 June 10 - . 10:10 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 572 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-06-23 . USAF Sat Cat: 6684 . COSPAR: 1973-038A. Apogee: 281 km (174 mi). Perigee: 206 km (128 mi). Inclination: 51.7000 deg. Period: 89.30 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 June 10 - . 14:13 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 1913.
  • Explorer 49 - . Payload: RAE B. Mass: 328 kg (723 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft Bus: Radio Astronomy Explorer. Spacecraft: RAE. USAF Sat Cat: 6686 . COSPAR: 1973-039A. Radio Astronomy Explorer; measured galactic, stellar radio noise. Lunar Orbit (Selenocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B)..

1973 June 10 - . 17:20 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral mission - . Nation: Japan. Agency: NIPR. Apogee: 123 km (76 mi).

1973 June 11 - . 18:10 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral mission - . Nation: Japan. Agency: NIPR. Apogee: 125 km (77 mi).

1973 June 11 - . 18:30 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 221 km (137 mi).

1973 June 12 - . 01:54 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy mission - . Nation: Russia. Apogee: 70 km (43 mi).

1973 June 12 - . 07:14 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan IIIC.
  • IMEWS 4 - . Payload: DSP Phase 1 s/n 4 / OPS 6157. Mass: 900 kg (1,980 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Early warning satellite. Spacecraft Bus: DSP. Spacecraft: DSP. Completed Operations Date: 1980-11-01 . USAF Sat Cat: 6691 . COSPAR: 1973-040A. Apogee: 35,786 km (22,236 mi). Perigee: 35,777 km (22,230 mi). Inclination: 0.3000 deg. Period: 1,435.90 min.

    First generation geosynchronous ballistic missile launch detection satellite, remained in service for over seven years. Positioned in geosynchronous orbit over the Indian Ocean at 75E in 1973; over the Americas at 105 deg W in 1979-1980. As of 1983 Jan 3 located at 73.21W drifting at 1.648W degrees per day.


1973 June 12 - . 16:09 GMT - . Launch Site: Fort Churchill. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • D / E region ions Aeronomy / plasma mission - . Nation: USA. Agency: USAF CRL. Apogee: 124 km (77 mi).

1973 June 12 - . 16:17 GMT - . Launch Site: Fort Churchill. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • D / E region ions Aeronomy / plasma mission - . Nation: USA. Agency: USAF CRL. Apogee: 125 km (77 mi).

1973 June 13 - . 17:38 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Solar Ultraviolet/Solar X-ray mission - . Nation: USA. Agency: NASA. Apogee: 241 km (149 mi).

1973 June 14 - . 14:00 GMT - . Launch Site: Molodezhnaya. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 92 km (57 mi).

1973 June 15 - . 06:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 573 - . Payload: Soyuz 7K-T s/n 35. Mass: 6,675 kg (14,715 lb). Nation: Russia. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Spacecraft Bus: Soyuz. Spacecraft: Soyuz 7K-T. Duration: 2.00 days. Decay Date: 1973-06-17 . USAF Sat Cat: 6694 . COSPAR: 1973-041A. Apogee: 308 km (191 mi). Perigee: 191 km (118 mi). Inclination: 51.6000 deg. Period: 89.50 min. Soyuz test flight. Recovered June 17, 1973 6:01 GMT. Soyuz 7K-T redesign test, probably using one of the spacecraft allocated to the failed Salyut 2 or Cosmos 557 stations..

1973 June 16 - . Launch Site: Baikonur. Launch Complex: Baikonur LC104. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 June 16 - . 10:30 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • Far ultraviolet OGS Ultraviolet astronomy mission - . Nation: UK. Agency: BAC. Apogee: 227 km (141 mi).

1973 June 18 - . 14:30 GMT - . Launch Site: Thule AFB. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, AN/DMQ-9- - . Nation: USA. Agency: MRN. Apogee: 76 km (47 mi).

1973 June 19 - . Launch Site: Kapustin Yar. LV Family: MR-12. Launch Vehicle: MR-12.
  • Ozone - . Nation: Russia. Agency: AN. Apogee: 150 km (90 mi).

1973 June 19 - . 10:55 GMT - .
1973 June 20 - . 06:16 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 574 - . Mass: 550 kg (1,210 lb). Nation: Russia. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: KAUR-1. Spacecraft: Tsiklon satellite. USAF Sat Cat: 6707 . COSPAR: 1973-042A. Apogee: 1,010 km (620 mi). Perigee: 976 km (606 mi). Inclination: 83.0000 deg. Period: 105.00 min. Military navigation satellite..

1973 June 21 - .
  • Skylab 2 - Wakeup Song: Lonely Bull - . Flight: Skylab 2 .

    "Lonely Bull" by Herb Alpert & Tijuana Brass; preceded by Boatswain's Call; the boatswain's pipe was directed to Pete Conrad by Paul Hand, probably because Conrad was Navy. "You should have started doing that on about day 2" Conrad quipped. "And the crew down here couldn't find a song for three bulls, it was only one" replied Capcom. Conrad countered with,"Here's a little old song, love" And then PAO filled in the background:"That last song coming down from Skylab was out of Pete Conrad's repertoire of country-western music he has aboard"


1973 June 21 - . Launch Site: Baikonur. Launch Complex: Baikonur LC177. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 June 21 - . 10:30 GMT - . Launch Site: Barking Sands. LV Family: Black Brant. Launch Vehicle: Black Brant IVB.
  • Galactic X-rays X-ray astronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 686 km (426 mi).

1973 June 21 - . 13:29 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 575 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 12.00 days. Decay Date: 1973-07-03 . USAF Sat Cat: 6709 . COSPAR: 1973-043A. Apogee: 271 km (168 mi). Perigee: 204 km (126 mi). Inclination: 65.4000 deg. Period: 89.30 min. Area survey photo reconnaissance satellite; returned film capsule; separated capsule..

1973 June 22 - .
1973 June 22 - . Launch Site: Kwajalein. Launch Complex: Kwajalein Meck. LV Family: Spartan ABM. Launch Vehicle: Spartan ABM.
  • SAFEGUARD M2-45 Interceptor mission - . Nation: USA. Agency: US Army. Apogee: 347 km (215 mi).

1973 June 22 - . Launch Site: Kwajalein. Launch Complex: Kwajalein Meck. LV Family: Spartan ABM. Launch Vehicle: Spartan ABM.
  • SAFEGUARD M2-45 Interceptor mission - . Nation: USA. Agency: US Army. Apogee: 340 km (210 mi).

1973 June 23 - . 10:45 GMT - . Launch Site: Barking Sands. Launch Complex: Barking Sands LC12. LV Family: Sandhawk. Launch Vehicle: Terrier Sandhawk.
  • LRL ACS-4E (ACS-9) X-ray astronomy mission - . Nation: USA. Agency: Sandia. Apogee: 297 km (184 mi).

1973 June 24 - . 02:00 GMT - . Launch Site: Molodezhnaya. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 June 25 - . 15:00 GMT - . Launch Site: Fort Sherman. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 0 km (0 mi).

1973 June 26 - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 24B. FAILURE: Agena upper stage failed to orbit.. Failed Stage: U.
  • OPS 4018 - . Payload: KH-8 no. 39 / Agena D. Mass: 3,000 kg (6,600 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. Spacecraft: KH-8. Decay Date: 1973-06-26 .

1973 June 26 - . 01:22 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: R-14. Launch Vehicle: Kosmos 11K65M. FAILURE: Nine persons were killed in the explosion of the vehicle.. Failed Stage: U.
  • Nine killed in fuelling accident at Plesetsk - . Nation: Russia. Agency: RVSN. Program: Tselina. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Tselina-O. Spacecraft: Tselina-O. COSPAR: F730626BA. Nine were killed at the LC-133 Voskhod complex during preparation of a Kosmos-3M booster. Oxidiser and propellant were accidentally mixed together during fuelling..

1973 June 26 - . 17:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 24B. FAILURE: Failure.
  • SRV-2 - . Mass: 3,000 kg (6,600 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-8.
  • SRV-1 - . Mass: 3,000 kg (6,600 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-8.

1973 June 27 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF07. LV Family: Minuteman. Launch Vehicle: Minuteman 2.
  • FOT GT114M Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 June 27 - . 11:50 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 576 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 12.00 days. Decay Date: 1973-07-09 . USAF Sat Cat: 6713 . COSPAR: 1973-044A. Apogee: 332 km (206 mi). Perigee: 204 km (126 mi). Inclination: 72.9000 deg. Period: 89.80 min. Military topography satellite; returned film capsule; separated science capsule..

1973 June 28 - . 13:44 GMT - . Launch Site: Natal. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 66 km (41 mi).

1973 June 28 - . 19:06 GMT - . Launch Site: Wallops Island. LV Family: Terrier. Launch Vehicle: Terrier Recruit.
  • Nation: USA. Agency: NASA. Apogee: 10 km (6 mi).

1973 June 29 - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • FEYERVERK Active Plasma mission - . Nation: Russia. Agency: IZMIRAN. Apogee: 120 km (70 mi).

1973 June 29 - . 11:59 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Composition Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 140 km (80 mi).

1973 June 30 - . 10:30 GMT - . Launch Pad: Atlantic Ocean, 50.0 N x 30.0 W. Launch Platform: VISE. LV Family: MR-12. Launch Vehicle: MR-12.
  • Eclipse mission - . Nation: Russia. Agency: AN. Apogee: 150 km (90 mi).

1973 June 30 - . 10:33 GMT - . Launch Site: Nouadhibou. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Coronal spectrograph Solar ultraviolet / eclipse mission - . Nation: USA. Agency: KPNO. Apogee: 180 km (110 mi).

1973 June 30 - . 13:07 GMT - . Launch Site: San Marco. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Solar extreme ultraviolet mission - . Nation: Italy. Agency: CRS. Apogee: 270 km (160 mi).

1973 July - . LV Family: Ariane. Launch Vehicle: Ariane 1.
  • Development of Ariane 1 launch vehicle authorised. - . Nation: France. Development took eight years, and cost 2 billion 1986 ECU's..

1973 July 1 - .
  • Death of Richard T Mittauer - . Nation: USA. Related Persons: Mittauer. American journalist, worked in NASA public information 1959-1972..

1973 July 1 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Test mission - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 July 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 Jul - . Launch Site: Dombarovskiy. LV Family: UR-100. Launch Vehicle: UR-100.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 July 1 - . 10:15 GMT - . Launch Pad: Atlantic Ocean, 50.0 N x 30.0 W. Launch Platform: VISE. LV Family: MR-12. Launch Vehicle: MR-12.
  • Ionosphere mission - . Nation: Russia. Apogee: 175 km (108 mi).

1973 July 2 - . 07:45 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 176 km (109 mi).

1973 July 2 - . 12:30 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Composition Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 136 km (84 mi).

1973 July 3 - .
  • Launch date of Skylab 3 set. - . Nation: USA. Program: Skylab. Flight: Skylab 3. Spacecraft Bus: Skylab. Spacecraft: Skylab. The launch date for Skylab 3 was officially established as 28 July 1973. . Additional Details: here....

1973 July 4 - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/3. Launch Pad: LC43/pad?. LV Family: R-7. Launch Vehicle: Voskhod 11A57. FAILURE: Failure. Failed Stage: U.
  • Zenit-4M - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: RVSN. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. High resolution photo reconnaissance mission..

1973 July 4 - . Launch Site: Baikonur. Launch Complex: Baikonur LC140/18. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 July 4 - . 01:15 GMT - . Launch Site: Thumba. LV Family: Belier. Launch Vehicle: Centaure 2A.
  • ISRO 5.21 Fields mission - . Nation: India. Agency: ISRO. Apogee: 150 km (90 mi).

1973 July 4 - . 03:27 GMT - . Launch Site: Andoya. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • DLR A-BBVC-49 Barbara Aeronomy /ionosphere mission - . Nation: Germany. Agency: DFVLR. Apogee: 260 km (160 mi).

1973 July 5 - . 23:30 GMT - . Launch Site: Barking Sands. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 62 km (38 mi).

1973 July 6 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF25. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • OT GT23GB operational test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 July 7 - . 13:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 90 km (55 mi).

1973 July 9 - . Launch Site: Baikonur. Launch Complex: Baikonur LC173. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 July 11 - . 09:58 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 2-06 - . Payload: Molniya-2. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-2. Decay Date: 1978-08-05 . USAF Sat Cat: 6722 . COSPAR: 1973-045A. Apogee: 39,292 km (24,414 mi). Perigee: 479 km (297 mi). Inclination: 65.0000 deg. Period: 706.00 min.

    Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).


1973 July 12 - . 14:49 GMT - . Launch Pad: Atlantic Ocean, 50.0 N x 30.0 W. Launch Platform: VISE. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere mission - . Nation: Russia. Apogee: 175 km (108 mi).

1973 July 13 - . 20:24 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.
  • KH-9 no. 06 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: KH-9. Spacecraft: KH-9. Decay Date: 1973-10-12 . USAF Sat Cat: 6727 . COSPAR: 1973-046A. Apogee: 291 km (180 mi). Perigee: 143 km (88 mi). Inclination: 96.2000 deg. Period: 88.80 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1973 July 14 - . 16:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKMR. Launch Platform: NOKV. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 July 15 - . 16:09 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral mission - . Nation: Japan. Agency: NIPR. Apogee: 131 km (81 mi).

1973 July 16 - . 17:10 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 0300. FAILURE: Second stage failure.. Failed Stage: U.
  • ITOS E - . Payload: ITOS E. Mass: 345 kg (760 lb). Nation: USA. Agency: NASA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft Bus: ITOS. Spacecraft: ITOS. Decay Date: 1973-07-16 . Improved TIROS Operational System..

1973 July 17 - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 3 AC.
  • Aeronomy mission? - . Nation: UK. Agency: BAC. Apogee: 210 km (130 mi).

1973 July 17 - . 15:22 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Cajun.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 117 km (72 mi).

1973 July 17 - . 16:41 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Cajun.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 116 km (72 mi).

1973 July 17 - . 17:35 GMT - . Launch Site: Wallops Island. LV Family: Viper. Launch Vehicle: Viper-Dart.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 134 km (83 mi).

1973 July 17 - . 22:13 GMT - . Launch Site: Wallops Island. LV Family: Honest John. Launch Vehicle: Javelin.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 724 km (449 mi).

1973 July 18 - . 02:40 GMT - . Launch Site: Wallops Island. LV Family: Viper. Launch Vehicle: Viper-Dart.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 141 km (87 mi).

1973 July 18 - . 03:14 GMT - . Launch Site: Wallops Island. LV Family: Super Loki. Launch Vehicle: Super Loki.
  • Test mission - . Nation: USA. Agency: MRN. Apogee: 116 km (72 mi).

1973 July 18 - . 04:17 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Cajun.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 115 km (71 mi).

1973 July 18 - . 05:02 GMT - . Launch Site: Wallops Island. LV Family: Super Loki. Launch Vehicle: Super Loki.
  • Test mission - . Nation: USA. Agency: MRN. Apogee: 115 km (71 mi).

1973 July 18 - . 06:00 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Cajun.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 121 km (75 mi).

1973 July 18 - . 07:31 GMT - . Launch Site: Wallops Island. LV Family: Viper. Launch Vehicle: Viper-Dart.
  • Test mission - . Nation: USA. Agency: US Army. Apogee: 133 km (82 mi).

1973 July 19 - .
  • Cosmonaut Vasily Dmitriyevich Shcheglov dies at age of 33 -- Natural causes. - . Nation: Russia. Related Persons: Shcheglov. Russian pilot cosmonaut, 1965-1972. Graduated from Yeisk Higher Military Pilot School, 1963 Cosmonaut training November 1965 - December 1967. Withdrawn from cosmonaut team for medical reasons..

1973 July 19 - . 21:21 GMT - . Launch Pad: Atlantic Ocean, 50.0 N x 30.0 W. Launch Platform: VISE. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere mission - . Nation: Russia. Apogee: 175 km (108 mi).

1973 July 20 - . Launch Site: Biscarosse. Launch Complex: Biscarosse BLB. LV Family: MSBS. Launch Vehicle: MSBS M2.
  • Operational test - . Nation: France. Agency: DMA. Apogee: 600 km (370 mi).

1973 July 20 - . 06:48 GMT - . Launch Pad: Atlantic Ocean, 50.0 N x 30.0 W. Launch Platform: VISE. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere mission - . Nation: Russia. Apogee: 175 km (108 mi).

1973 July 21 - . Launch Site: Baikonur. Launch Complex: Baikonur LC161/35. LV Family: R-36. Launch Vehicle: R-36 8K67PM. FAILURE: Failure.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 July 21 - . 00:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-18 Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 July 21 - . 19:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/D.
  • Mars 4 - . Payload: M-73 s/n 52S. Mass: 4,650 kg (10,250 lb). Nation: Russia. Agency: MOM. Program: Mars. Class: Mars. Type: Mars probe. Spacecraft Bus: 4MV. Spacecraft: Mars M-73. USAF Sat Cat: 6742 . COSPAR: 1973-047A.

    Failed; did not enter Martian orbit as planned; intended to be a Mars orbiter mission. Mars 4 reached Mars on 10 February 1974. Due to use of helium in preflight tests of the computer chips, which resulted in degradation of the chips during the voyage to Mars, the retro-rockets never fired to slow the craft into Mars orbit. Mars 4 flew by the planet at a range of 2,200 km. It returned one swath of pictures and some radio occultation data. Final heliocentric orbit 1.02 x 1.63 AU, 2.2 degree inclination, 556 day period.


1973 July 23 - . 12:23 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • XRB scintillator tel X-ray astronomy mission - . Nation: UK. Agency: SRC. Apogee: 143 km (88 mi).

1973 July 24 - . 00:45 GMT - . Launch Site: Kwajalein. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 81 km (50 mi).

1973 July 25 - . Launch Site: Baikonur. Launch Complex: Baikonur LC177. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 July 25 - . Launch Site: Kapustin Yar. LV Family: Tochka. Launch Vehicle: Tochka.
  • Nation: Russia. Agency: RVSN. Apogee: 20 km (12 mi).

1973 July 25 - . 11:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 577 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-08-07 . USAF Sat Cat: 6745 . COSPAR: 1973-048A. Apogee: 309 km (192 mi). Perigee: 175 km (108 mi). Inclination: 65.4000 deg. Period: 89.30 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 July 25 - . 15:45 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • Test mission - . Nation: USA. Agency: NASA. Apogee: 276 km (171 mi).

1973 July 25 - . 18:55 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/24. LV Family: Proton. Launch Vehicle: Proton-K/D.
  • Mars 5 - . Payload: M-73 s/n 53S. Mass: 4,650 kg (10,250 lb). Nation: Russia. Agency: MOM. Program: Mars. Class: Mars. Type: Mars probe. Spacecraft Bus: 4MV. Spacecraft: Mars M-73. USAF Sat Cat: 6754 . COSPAR: 1973-049A.

    Mars probe intended to enter Martian orbit and comprehensively photograph Mars. Parameters are for Mars orbit. Mars 5 reached Mars on 12 February 1974 and was inserted into a 1760 km x 32,586 km orbit. Due to computer chip failures the orbiter operated only a few days and returned atmospheric data and images of a small portion of the Martian southern hemisphere.


1973 July 26 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF05. LV Family: Minuteman. Launch Vehicle: Minuteman 2.
  • ERCS GIANT MOON 4 Communications mission - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 July 27 - . 14:00 GMT - . Launch Site: Antigua. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para, Arcasonde - . Nation: USA. Agency: MRN. Apogee: 51 km (31 mi).

1973 July 28 - . 01:06 GMT - . Launch Site: White Sands. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 120 km (70 mi).

1973 July 28 - . 11:10 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39B. Launch Platform: LUT1. LV Family: Saturn I. Launch Vehicle: Saturn IB.
  • Skylab 3 - . Call Sign: Skylab. Crew: Bean, Garriott, Lousma. Backup Crew: Brand, Lenoir, Lind. Payload: Apollo CSM 117. Mass: 20,121 kg (44,359 lb). Nation: USA. Related Persons: Bean, Brand, Garriott, Lenoir, Lind, Lousma. Agency: NASA Houston. Program: Skylab. Class: Moon. Type: Manned lunar spacecraft. Flight: Skylab 3. Spacecraft Bus: Apollo CSM. Spacecraft: Apollo CSM. Duration: 59.46 days. Decay Date: 1973-09-25 . USAF Sat Cat: 6757 . COSPAR: 1973-050A. Apogee: 442 km (274 mi). Perigee: 422 km (262 mi). Inclination: 50.0000 deg. Period: 93.20 min.

    Continued maintenance of the Skylab space station and extensive scientific and medical experiments. Installed twinpole solar shield on EVA; performed major inflight maintenance; doubled record for length of time in space. Completed 858 Earth orbits and 1,081 hours of solar and Earth experiments; three EVAs totalled 13 hours, 43 minutes.

    The space vehicle, consisting of a modified Apollo command and service module payload on a Saturn IB launch vehicle, was inserted into a 231.3 by 154.7 km orbit. Rendezvous maneuvers were performed during the first five orbits as planned. During the rendezvous, the CSM reaction control system forward firing engine oxidizer valve leaked. The quad was isolated. Station-keeping with the Saturn Workshop began approximately 8 hours after liftoff, with docking being performed about 30 minutes later.


1973 July 30 - . Launch Site: Baikonur. Launch Complex: Baikonur LC103. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 July 31 - . 19:19 GMT - . Launch Site: Poker Flat. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 56 km (34 mi).

1973 August 1 - .
  • X-24 Flight 29 - . Crew: Manke. Payload: X-24B flight 1. Nation: USA. Related Persons: Manke. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. First glide flight. Maximum Speed - 740 kph. Maximum Altitude - 12190 m. Flight Time - 252 sec..

1973 August 1 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Test mission - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 August 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 August 1 - . 14:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 578 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 12.00 days. Decay Date: 1973-08-13 . USAF Sat Cat: 6759 . COSPAR: 1973-051A. Apogee: 292 km (181 mi). Perigee: 200 km (120 mi). Inclination: 65.4000 deg. Period: 89.40 min. Area survey photo reconnaissance satellite; returned film capsule..

1973 August 1 - . 22:17 GMT - . Launch Site: Kiruna. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • SSC NNA 6 Aeronomy mission - . Nation: Sweden. Agency: NASA, SSC. Apogee: 109 km (67 mi).

1973 August 1 - . 22:48 GMT - . Launch Site: Kiruna. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • SSC NNA 7 Aeronomy mission - . Nation: Sweden. Agency: NASA, SSC. Apogee: 111 km (68 mi).

1973 August 2 - .
  • Skylab 3 RCS problems - . Nation: USA. Flight: Skylab 3.

    On 2 August the service module reaction control system engines were inhibited, and the isolation valves closed because of another leak. Acceptable control modes and deorbit and entry procedures were defined, consistent with the constraints imposed by the two reaction control system problems.


1973 August 2 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF04. LV Family: Minuteman. Launch Vehicle: Minuteman 2.
  • FOT GT113M Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 August 3 - . 16:00 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 184 km (114 mi).

1973 August 4 - . 08:10 GMT - . Launch Site: Kiruna. Launch Complex: Kiruna S. LV Family: Skylark. Launch Vehicle: Skylark 4 AC. FAILURE: Failure.
  • UK / SSC ER1 Earth imaging mission - . Nation: UK. Agency: BAC, SSC. Apogee: 7.00 km (4.30 mi).

1973 August 5 - . 17:45 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/D.
  • Mars 6 - . Payload: M-73 s/n 50P. Mass: 4,650 kg (10,250 lb). Nation: Russia. Agency: MOM. Program: Mars. Class: Mars. Type: Mars probe. Spacecraft Bus: 4MV. Spacecraft: Mars M-73. USAF Sat Cat: 6768 . COSPAR: 1973-052A.

    Mars probe intended to make a soft landing on Mars. Total fueled launch mass of the lander and orbital bus was 3260 kg. It reached Mars on 12 March 1974, separated from the bus, and entered the atmosphere, where a parachute opened, slowing the descent. As the probe descended through the atmosphere it transmitted data for 150 seconds, representing the first data returned from the atmosphere of Mars. Unfortunately, the data were largely unreadable due to a flaw in a computer chip which led to degradation of the system during its journey to Mars. When the retro-rockets fired for landing, contact was lost with the craft. Mars 6 landed at about 24 degrees south, 25 degrees west in the Margaritifer Sinus region of Mars. Bus ended up in a final heliocentric orbit 1.01 x 1.67 AU, 2.2 degree inclination, 567 day period.


1973 August 5 - . 23:42 GMT - . Launch Site: Kiruna. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • SSC NNA 9 Aeronomy mission - . Nation: Sweden. Agency: NASA, SSC. Apogee: 123 km (76 mi).

1973 August 6 - . 00:08 GMT - . Launch Site: Kiruna. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • SSC NNA 8 Aeronomy mission - . Nation: Sweden. Agency: NASA, SSC. Apogee: 103 km (64 mi).

1973 August 7 - .
  • NASM established a complete library of Apollo lunar photos - . Nation: USA. Related Persons: Collins. Program: Apollo.

    National Air and Space Museum Director Michael Collins advised JSC that NASM had established a center for research and study with responsibility for a complete library of lunar photos to document scientific results of the Apollo missions. The library would be used for original research and for planning and updating scientific parts of exhibits.


1973 August 7 - . 17:30 GMT - .
  • EVA Skylab 3-1 - . Crew: Garriott, Lousma. EVA Duration: 0.27 days. Nation: USA. Related Persons: Garriott, Lousma. Program: Skylab. Class: Manned. Type: Manned space station. Flight: Skylab 3. Spacecraft Bus: Skylab. Spacecraft: Skylab.

    Installed second sunshade. Replaced solar camera film cartridges. During EVA by crew members of Skylab 3, a twin-boom sunshade, developed by MSFC, was deployed over the parasol of the OWS. A redesigned and refined thermal parasol had been launched with Skylab 3. However, its use would have required jettisoning the parasol deployed by crew members of Skylab 2, with the possibility of creating the same thermal problems that existed on the OWS prior to the parasol deployment. Following erection of the twin-pole sunshade, the cabin temperature stayed at a comfortable 293-297 K (67.7°F-74.9°F).


1973 August 8 - . 09:00 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 87 km (54 mi).

1973 August 9 - . Launch Site: Wallops Island. LV Family: Black Brant. Launch Vehicle: Black Brant IVB.
  • Test mission - . Nation: USA. Agency: NASA. Apogee: 250 km (150 mi).

1973 August 9 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-20 Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 August 9 - . 17:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/24. LV Family: Proton. Launch Vehicle: Proton-K/D.
  • Mars 7 - . Payload: M-73 s/n 51P. Mass: 4,650 kg (10,250 lb). Nation: Russia. Agency: MOM. Program: Mars. Class: Mars. Type: Mars probe. Spacecraft Bus: 4MV. Spacecraft: Mars M-73. USAF Sat Cat: 6776 . COSPAR: 1973-053A.

    Mars probe intended to make a soft landing on Mars. Mars 7 reached Mars on 9 March 1974. Due to a problem in the operation of one of the onboard systems (attitude control or retro-rockets) the landing probe separated prematurely and missed the planet by 1,300 km. The early separation was probably due to a computer chip error which resulted in degradation of the systems during the trip to Mars. Ended up in a final heliocentric orbit 1.01 x 1.69 AU, 2.2 degree inclination, 574 day period.


1973 August 9 - . 17:30 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • CALROC 2 Solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 269 km (167 mi).

1973 August 9 - . 20:12 GMT - . Launch Site: Wallops Island. LV Family: Black Brant. Launch Vehicle: Black Brant IVB.
  • HI Rate Midas Conv test - . Nation: USA. Agency: AFCRL. Apogee: 605 km (375 mi).

1973 August 10 - . 10:52 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee 150.
  • Bremstrahlung Plasma mission - . Nation: USA. Agency: AFCRL. Apogee: 168 km (104 mi).

1973 August 10 - . 15:05 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 188 km (116 mi).

1973 August 11 - . 05:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 86 km (53 mi).

1973 August 13 - .
  • Skylab backup Saturn V Orbital Workshop launch capability cancelled. - . Nation: USA. Program: Skylab. Spacecraft Bus: Skylab. Spacecraft: Skylab.

    NASA decided to delete the Skylab backup Saturn V Orbital Workshop launch capability effective 15 August. All work associated with the completion, checkout, and support of Skylab backup hardware, experiments, software, facilities, and ground support equipment would be canceled immediately, except for the work that would directly support SL-3, SL-4, and rescue missions.


1973 August 14 - . 08:58 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. LV Family: Lupus. Launch Vehicle: Cockatoo Mk 4.
  • Aeronomy mission - . Nation: Australia. Agency: WRE. Apogee: 121 km (75 mi).

1973 August 15 - . Launch Site: Tonopah. LV Family: Talos. Launch Vehicle: Tater.
  • Test mission - . Nation: USA. Agency: Sandia. Apogee: 5.00 km (3.10 mi). The Talos-Terrier-Recruit (TATER) launch vehicle was successfully test launched at the Tonopah Test Range. .

1973 August 15 - . Launch Site: Baikonur. Launch Complex: Baikonur LC101. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 August 15 - . 05:45 GMT - . Launch Site: White Sands. LV Family: Deacon. Launch Vehicle: Nike Apache.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 117 km (72 mi).

1973 August 16 - . LV Family: Shuttle. Launch Vehicle: Space Shuttle.
  • Shuttle solid rocket booster contract - . Nation: USA. United Space Boosters and Thiokol receive the contract..

1973 August 16 - . LV Family: Shuttle. Launch Vehicle: Space Shuttle.
  • Shuttle external tank contract - . Nation: USA. Boeing Michoud received the production contract, using facilities already built for Saturn V first stage construction. By 1996 the contract will have totalled $6.7 billion and covered the production of 120 external tanks..

1973 August 17 - .
  • X-24 Flight 30 - . Crew: Manke. Payload: X-24B flight 2. Nation: USA. Related Persons: Manke. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. Maximum Speed - 722 kph. Maximum Altitude - 13720 m. Flight Time - 267 sec..

1973 August 17 - . Launch Site: Baikonur. Launch Complex: Baikonur LC162/36. LV Family: R-36. Launch Vehicle: R-36 8K67PM.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 August 17 - . 04:49 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC10W. LV Family: Thor. Launch Vehicle: Thor Burner 2A.
  • DMSP-Block-5B F4 - . Payload: DMSP 7529 / OPS 8364. Mass: 195 kg (429 lb). Nation: USA. Agency: USAF. Program: DMSP. Class: Earth. Type: Weather satellite. Spacecraft Bus: DMSP Block 4/5 satellites. Spacecraft: DMSP Block 5B. USAF Sat Cat: 6787 . COSPAR: 1973-054A. Apogee: 819 km (508 mi). Perigee: 779 km (484 mi). Inclination: 98.9000 deg. Period: 100.90 min. Defense Meteorological Satellite Program..

1973 August 19 - . 09:55 GMT - . Launch Site: Kagoshima. LV Family: S-210. Launch Vehicle: S-210.
  • Aeronomy mission - . Nation: Japan. Agency: ISAS. Apogee: 115 km (71 mi).

1973 August 20 - . 10:09 GMT - . Launch Site: Poker Flat. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 61 km (37 mi).

1973 August 21 - .
  • Skylab 2 - Wakeup Song: Girl from Ipanema - . Flight: Skylab 2 . "Girl from Ipanema" and"Anchors Aweigh" CAPCOM: Bob Crippen.

1973 August 21 - . 07:00 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 9M.
  • Plasma / ionosphere mission - . Nation: Japan. Agency: ISAS. Apogee: 355 km (220 mi).

1973 August 21 - . 12:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 579 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-09-03 . USAF Sat Cat: 6789 . COSPAR: 1973-055A. Apogee: 270 km (160 mi). Perigee: 171 km (106 mi). Inclination: 65.4000 deg. Period: 88.90 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 August 21 - . 16:07 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 33B.
  • Jumpseat 3 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Jumpseat. Spacecraft: Jumpseat. USAF Sat Cat: 6791 . COSPAR: 1973-056A. Apogee: 39,296 km (24,417 mi). Perigee: 460 km (280 mi). Inclination: 63.3000 deg. Period: 705.70 min.

1973 August 22 - .
  • Skylab 2 - Wakeup Song: The Party's Over - . Flight: Skylab 2 . "The Party's Over" by Julie London CAPCOM: Bob Crippen.

1973 August 22 - . 11:24 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 580 - . Payload: DS-P1-Yu s/n 59. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1974-09-04 . Decay Date: 1974-04-01 . USAF Sat Cat: 6793 . COSPAR: 1973-057A. Apogee: 490 km (300 mi). Perigee: 273 km (169 mi). Inclination: 70.9000 deg. Period: 92.10 min. Development of systems for air defence and the control of outer space..

1973 August 22 - . 21:53 GMT - . Launch Site: Syowa Base. LV Family: S-210. Launch Vehicle: S-210.
  • Auroral arc Aurora mission - . Nation: Japan. Agency: NIPR. Apogee: 129 km (80 mi).

1973 August 23 - .
  • Skylab 2 - Wakeup Song: Army Air Corps Song - . Flight: Skylab 2 . "Army Air Corps Song" CAPCOM: Bob Crippen.

1973 August 23 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF08. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • Research and development launch - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 August 23 - . 03:45 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • 13-in RC Flight 1 Ultraviolet astronomy mission - . Nation: USA. Agency: NASA. Apogee: 213 km (132 mi).

1973 August 23 - . 22:57 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36A. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
  • Intelsat 4 F-7 - . Mass: 1,410 kg (3,100 lb). Nation: International. Agency: Intelsat. Program: Intelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: Intelsat 4. Spacecraft: Intelsat 4. Completed Operations Date: 1984-02-23 . USAF Sat Cat: 6796 . COSPAR: 1973-058A. Apogee: 36,132 km (22,451 mi). Perigee: 36,080 km (22,410 mi). Inclination: 10.4000 deg. Period: 1,452.50 min.

    Over Atlantic Ocean. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit Positioned in geosynchronous orbit over the Atlantic Ocean at 30 deg W in 1973-1976 over the Atlantic Ocean 1 deg W in 1976-1980; over the Indian Ocean 56 deg E in 1980-1981; over the Pacific Ocean179 deg E in 1981-1982; over the Atlantic Ocean 53 deg W in 1982-1983 As of 31 August 2001 located at 74.52 deg W drifting at 4.067 deg W per day. As of 2007 Mar 10 located at 19.61E drifting at 4.058W degrees per day.


1973 August 24 - .
  • Skylab 2 - Wakeup Song: Come Fly With Me - . Flight: Skylab 2 . "Come Fly With Me".

1973 August 24 - . 07:15 GMT - . Launch Site: Green River. LV Family: Athena RTV. Launch Vehicle: Athena H.
  • ABC-3 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

    An Athena H missile was fired from the launch complex at Green River, Utah, carrying an Advanced Ballistic Reentry System (ABRES) payload. This was the 11th Athena H to be fired from Green River in support of the ABRES program and the 141st Athena to be launched from Green River since the beginning of the program in February 1964. Following this launch, the Green River complex was closed and Athena launch operations were transferred to Wake Island.


1973 August 24 - . 10:59 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 581 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-09-06 . USAF Sat Cat: 6798 . COSPAR: 1973-059A. Apogee: 276 km (171 mi). Perigee: 177 km (109 mi). Inclination: 51.6000 deg. Period: 89.00 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 August 24 - . 16:24 GMT - .
1973 August 25 - .
  • Skylab 2 - Wakeup Song: Julie London and Tijuana Brass - . Flight: Skylab 2 . "Julie London and Tijuana Brass" CAPCOM: Bob Crippen.

1973 August 25 - . 00:45 GMT - . Launch Site: Kwajalein. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 64 km (39 mi).

1973 August 26 - . 23:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 85 km (52 mi).

1973 August 27 - .
  • Actions for the final phaseout of the Apollo program - . Nation: USA. Program: Apollo. Spacecraft Bus: Apollo CSM. Spacecraft: Apollo CSM.

    Apollo Soyuz Test Project Program Director Chester M. Lee, Office of Manned Space Flight, NASA Hq., was assigned as the management official to take actions necessary for the final phaseout of the Apollo program. All Apollo program inquiries, activities, and actions not covered by specific delegations of authority would be referred to Lee for appropriate decision and disposition.


1973 August 27 - .
  • Skylab 2 - Wakeup Song: My Skylab Home - . Flight: Skylab 2 . "My Skylab Home" written and performed by Chuck Morley of Cocoa Beach, Florida courtesy of Bill Cummings of Titusville radio station WRMF CAPCOM: Karl Henize.

1973 August 27 - . 12:00 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 9M.
  • X-ray astronomy mission - . Nation: Japan. Agency: ISAS. Apogee: 341 km (211 mi).

1973 August 28 - . 10:08 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 582 - . Mass: 750 kg (1,650 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Tselina-O. Spacecraft: Tselina-O. Decay Date: 1980-09-05 . USAF Sat Cat: 6802 . COSPAR: 1973-060A. Apogee: 543 km (337 mi). Perigee: 519 km (322 mi). Inclination: 74.0000 deg. Period: 95.30 min. Possible ELINT satellite..

1973 August 29 - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576A3. LV Family: Atlas. Launch Vehicle: Atlas F.
  • BMRS RVTO-3A-2 re-entry vehicle test flight - . Nation: USA. Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1973 August 30 - .
  • NASA plans release, disposition, and storage of all unneeded Skylab Program equipment. - . Nation: USA.

    Guidelines were issued by NASA Hq for release, disposition, and storage of all unneeded Skylab Program equipment. Two Saturn Vs, two Saturn IBs, three command and service modules, the backup Skylab cluster, and appropriate spares would be placed in minimum cost storage as soon as program requirements permitted.


1973 August 30 - . 00:07 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 1-24 - . Payload: Molniya-1. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-1. Decay Date: 1979-12-05 . USAF Sat Cat: 6805 . COSPAR: 1973-061A. Apogee: 39,893 km (24,788 mi). Perigee: 463 km (287 mi). Inclination: 65.5000 deg. Period: 717.80 min. Uncertain if Molniya-1T model was Molniya-1 or Molniya-1T. Operation of a system of long range telephone-telegraph radiocommunication, and transmission of USSR Central Television programmes to the stations of the Orbita network..

1973 August 30 - . 10:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 583 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 13.00 days. Decay Date: 1973-09-12 . USAF Sat Cat: 6809 . COSPAR: 1973-062A. Apogee: 298 km (185 mi). Perigee: 204 km (126 mi). Inclination: 64.9000 deg. Period: 89.50 min. Area survey photo reconnaissance satellite; returned film capsule; separated capsule..

1973 August 30 - . 17:01 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 299 km (185 mi).

1973 August 31 - .
  • X-24 Flight 31 - . Crew: Manke. Payload: X-24B flight 3. Nation: USA. Related Persons: Manke. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. Maximum Speed - 771 kph. Maximum Altitude - 13720 m. Flight Time - 277 sec..

1973 September 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 September 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 September 2 - . 00:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 89 km (55 mi).

1973 September 3 - . Launch Site: Baikonur. Launch Complex: Baikonur LC104. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 September 3 - . 00:03 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Airglow Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 135 km (83 mi).

1973 September 3 - . 02:04 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Airglow Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 143 km (88 mi).

1973 September 4 - . 16:45 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • Solar Ultraviolet/Solar X-ray mission - . Nation: USA. Agency: NASA. Apogee: 235 km (146 mi).

1973 September 5 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF02. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • FOT GT43GM Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 September 6 - . 10:40 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 584 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 14.00 days. Decay Date: 1973-09-20 . USAF Sat Cat: 6818 . COSPAR: 1973-063A. Apogee: 336 km (208 mi). Perigee: 205 km (127 mi). Inclination: 72.9000 deg. Period: 90.00 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 September 6 - . 11:39 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • Composition / La Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 131 km (81 mi).

1973 September 7 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-44 Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 September 7 - . 01:40 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima T. LV Family: JCR. Launch Vehicle: JCR.
  • Test mission - . Nation: Japan. Agency: NASDA. Apogee: 200 km (120 mi).

1973 September 8 - . 01:50 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 585 - . Mass: 550 kg (1,210 lb). Nation: Russia. Agency: MO. Spacecraft Bus: KAUR-1. Spacecraft: Sfera. USAF Sat Cat: 6825 . COSPAR: 1973-064A. Apogee: 1,404 km (872 mi). Perigee: 1,375 km (854 mi). Inclination: 74.0000 deg. Period: 113.60 min. Investigation of the upper atmosphere and outer space. .

1973 September 9 - .
  • Death of Sergei Konstantinovich Tumanskiy - . Nation: Russia. Related Persons: Tumanskiy. Russian chief designer. Chief Designer and General Designer 1955-1973 of OKB-300. Specialised in aircraft turbine engines but also produced spacecraft attitude control engines..

1973 September 9 - . 23:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 83 km (51 mi).

1973 September 10 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-23 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 September 10 - . 00:02 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • TMA Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 170 km (100 mi).

1973 September 10 - . 04:18 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • TMA Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 168 km (104 mi).

1973 September 11 - . 03:19 GMT - . Launch Site: White Sands. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Vehicle potential test - . Nation: USA. Agency: USAF CRL. Apogee: 160 km (90 mi).

1973 September 12 - . Launch Site: Baikonur. Launch Complex: Baikonur LC140/18. LV Family: R-36M. Launch Vehicle: R-36M 15A14. FAILURE: Failure.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 September 12 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-24 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 September 13 - .
  • Apollo-Soyuz Test Project (ASTP) revisit to Skylab in mid-1975 feasible. - . Nation: USA. Program: Skylab. Flight: Apollo (ASTP).

    Discussions confirmed that there was reasonable assurance that an Apollo-Soyuz Test Project (ASTP) revisit to Skylab in mid-1975 was feasible. However, such a dual mission would create a significant planning problem for the operations team and would introduce many new considerations to the inflight planning and execution because of uncertainties in the orbital mechanics.


1973 September 13 - . 21:30 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 199 km (123 mi).

1973 September 14 - . 00:31 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 586 - . Mass: 550 kg (1,210 lb). Nation: Russia. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: KAUR-1. Spacecraft: Tsiklon satellite. USAF Sat Cat: 6828 . COSPAR: 1973-065A. Apogee: 1,003 km (623 mi). Perigee: 961 km (597 mi). Inclination: 82.9000 deg. Period: 104.70 min. Military navigation satellite..

1973 September 15 - .
  • Skylab 2 - Wakeup Song: Paralyzed - . Flight: Skylab 2 . "Paralyzed" by Legendary Stardust Cowboy. Sounded like Marine Close Order Drill to Owen Garriott CAPCOM: Bob Crippen.

1973 September 15 - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 10C.
  • M-3C Stage Sep Test - . Nation: Japan. Agency: ISAS. Apogee: 100 km (60 mi).

1973 September 15 - . 04:36 GMT - . Launch Site: South Uist. LV Family: Petrel. Launch Vehicle: Petrel.
  • ELF / VLF Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 124 km (77 mi).

1973 September 15 - . 05:25 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF26. Launch Pad: LF26?. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • OT GT25GB operational test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 September 15 - . 08:23 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere mission - . Nation: Russia. Apogee: 150 km (90 mi).

1973 September 15 - . 22:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral ETR. Launch Platform: SSBN 657. LV Family: Polaris. Launch Vehicle: Poseidon C3.
  • Demonstration and shakedown operations launch - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1973 September 16 - . 15:30 GMT - . Launch Site: Leba. LV Family: Meteor sounding rocket. Launch Vehicle: Meteor-3 sounding rocket.
  • Aeronomy mission - . Nation: Poland. Agency: PIHM. Apogee: 44 km (27 mi).

1973 September 17 - .
  • Skylab 2 - Wakeup Song: Come Saturday Morning - . Flight: Skylab 2 . "Come Saturday Morning" preceded by Message from Mother Earth (the alter ego of Bob Crippen).

1973 September 17 - . 15:50 GMT - . Launch Site: Leba. LV Family: Meteor sounding rocket. Launch Vehicle: Meteor-3 sounding rocket.
  • Aeronomy mission - . Nation: Poland. Agency: PIHM. Apogee: 45 km (27 mi).

1973 September 18 - .
  • Birth of Mark Richard Republic 'Buranov' Shuttleworth - . Nation: South Africa. Related Persons: Shuttleworth. South African engineer cosmonaut. Flew on ISS EP-3. First South African astronaut..

1973 September 18 - .
  • X-24 Flight 32 - . Crew: Manke. Payload: X-24B flight 4. Nation: USA. Related Persons: Manke. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. Maximum Speed - 724 kph. Maximum Altitude - 13720 m. Flight Time - 271 sec..

1973 September 18 - .
  • Skylab 2 - Wakeup Song: String of Pearls - . Flight: Skylab 2 . "String of Pearls" by Glenn Miller Orchestra.

1973 September 18 - . Launch Site: Jiuquan. Launch Complex: Jiuquan LA2B. LV Family: CZ. Launch Vehicle: Feng Bao 1. FAILURE: Failure. Failed Stage: U.
  • JSSW 1 - . Payload: JSSW 1. Mass: 1,100 kg (2,400 lb). Nation: China. Agency: PRC. Spacecraft Bus: JSSW. Spacecraft: JSSW.

1973 September 18 - . Launch Site: Biscarosse. Launch Complex: Biscarosse BLB. LV Family: MSBS. Launch Vehicle: SSBS S2.
  • Operational test - . Nation: France. Agency: DMA. Apogee: 1,000 km (600 mi).

1973 September 18 - . 15:50 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Polar disturbed ionosphere Ionosphere mission - . Nation: USA. Agency: USAF CRL. Apogee: 127 km (78 mi).

1973 September 18 - . 17:21 GMT - . Launch Site: Poker Flat. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Polar disturbed ionosphere Ionosphere mission - . Nation: USA. Agency: USAF CRL. Apogee: 129 km (80 mi).

1973 September 19 - .
  • Skylab 2 - Wakeup Song: Marine Corps Hymn - . Flight: Skylab 2 . "Marine Corps Hymn" played for Jack Lousma. Jack said Mission Control should be standing at attention..

1973 September 19 - . 09:17 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. LV Family: Musca. Launch Vehicle: Kookaburra 2.
  • Aeronomy mission - . Nation: Australia. Agency: WRE. Apogee: 121 km (75 mi).

1973 September 20 - . 15:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 86 km (53 mi).

1973 September 21 - . 13:05 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 587 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 13.00 days. Decay Date: 1973-10-04 . USAF Sat Cat: 6832 . COSPAR: 1973-066A. Apogee: 301 km (187 mi). Perigee: 205 km (127 mi). Inclination: 65.4000 deg. Period: 89.60 min. Second flight of Soyuz U launch vehicle. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 September 21 - . 17:00 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • Extreme ultraviolet solar spectrum Solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 290 km (180 mi).

1973 September 22 - . 09:20 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 10.
  • X-ray astronomy / ionosphere mission - . Nation: Japan. Agency: ISAS. Apogee: 242 km (150 mi).

1973 September 22 - . 11:18 GMT - .
1973 September 24 - . 17:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 88 km (54 mi).

1973 September 25 - .
1973 September 25 - .
  • Skylab 2 - Wakeup Song: Going Back to Houston - . Flight: Skylab 2 . "Going Back to Houston" (Sic), probably"Houston" by Dean Martin CAPCOM: Henry Hartsfield Skylab 4.

1973 September 25 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF04. LV Family: Minuteman. Launch Vehicle: Minuteman 2.
  • FOT GT115M-1 Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 September 26 - . 16:00 GMT - . Launch Site: Natal. LV Family: Nike Iroquois. Launch Vehicle: Nike Iroquois.
  • Sphere Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 225 km (139 mi).

1973 September 26 - . 19:42 GMT - . Launch Site: Natal. LV Family: Tomahawk. Launch Vehicle: Paiute Tomahawk.
  • O2 / O3 / X-ray Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 288 km (178 mi).

1973 September 27 - . 04:27 GMT - . Launch Site: Natal. LV Family: Nike Iroquois. Launch Vehicle: Nike Iroquois.
  • Sphere Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 232 km (144 mi).

1973 September 27 - . 12:18 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 12 - . Call Sign: Ural (Urals ). Crew: Lazarev, Makarov. Backup Crew: Grechko, Gubarev. Support Crew: Klimuk, Sevastyanov. Payload: Soyuz 7K-T s/n 36. Mass: 6,720 kg (14,810 lb). Nation: Russia. Related Persons: Grechko, Gubarev, Klimuk, Lazarev, Makarov, Sevastyanov. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 12. Spacecraft Bus: Soyuz. Spacecraft: Soyuz 7K-T. Duration: 1.97 days. Decay Date: 1973-09-29 . USAF Sat Cat: 6836 . COSPAR: 1973-067A. Apogee: 348 km (216 mi). Perigee: 306 km (190 mi). Inclination: 51.0000 deg. Period: 91.00 min.

    Experimental flight for the purpose of further development of manned space craft Soyuz 7K-T modifications. After the Soyuz 11 disaster, the Soyuz underwent redesign for increased reliability. Two solo test flights of the new design were planned. Crews for the first flight were those already planned for the deferred follow-on missions to the failed DOS 2 and DOS 3 space stations.


1973 September 27 - . 17:01 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere mission - . Nation: Russia. Apogee: 141 km (87 mi).

1973 September 27 - . 17:15 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Titan. Launch Vehicle: Titan 24B.
  • OPS 6275 - . Payload: KH-8 no. 40 / Agena D. Mass: 3,000 kg (6,600 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. Spacecraft: KH-8. Decay Date: 1973-10-29 . USAF Sat Cat: 6837 . COSPAR: 1973-068A. Apogee: 385 km (239 mi). Perigee: 131 km (81 mi). Inclination: 110.5000 deg. Period: 89.70 min. KH-8 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1973 September 28 - . 03:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 91 km (56 mi).

1973 September 29 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 September 29 - . 03:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 84 km (52 mi).

1973 September 29 - .
1973 September 30 - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576A1. LV Family: Atlas. Launch Vehicle: Atlas F.
  • BMRS ACE-1 re-entry vehicle test flight - . Nation: USA. Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

    Atlas 108F, carrying the Advanced Control Experiment 1 (ACE 1) vehicle, was launched from Vandenberg AFB and impacted in the Kwajalein area. The ACE 1 vehicle was to test the development of a preprototype of maneuvering reentry vehicle (MaRV) as part of the Advanced Ballistic Reentry Systems (ABRES) program.


1973 October 1 - .
  • Death of Yuri Aleksandrovich Pobedonostsev - . Nation: Russia. Related Persons: Pobedonostsev. Russian engineer. Chief Engineer 1946-49 of Nll-88. Later Chief Engineer of Nll-125..

1973 Q4 - . Launch Site: Woomera. Launch Complex: Woomera LA2. LV Family: Lupus. Launch Vehicle: Lorikeet.
  • Aeronomy mission - . Nation: Australia. Agency: WRE. Apogee: 100 km (60 mi).

1973 October 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 October 2 - . Launch Site: Baikonur. Launch Complex: Baikonur LC173. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 October 2 - . 01:52 GMT - . Launch Site: El Arenosillo. LV Family: Skylark. Launch Vehicle: Skylark 2 AC.
  • DLR H-GR-57 Test/Ultraviolet Astronomy/Astrophysics mission - . Nation: Germany. Agency: DFVLR. Apogee: 186 km (115 mi).

1973 October 2 - . 21:46 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 588 - . Payload: Strela-1M no. 49. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6845 . COSPAR: 1973-069A. Apogee: 1,493 km (927 mi). Perigee: 1,448 km (899 mi). Inclination: 74.0000 deg. Period: 115.30 min. Eight satellites launched by a single carrier rocket..
  • Cosmos 592 - . Payload: Strela-1M no. 53. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6849 . COSPAR: 1973-069E. Apogee: 1,484 km (922 mi). Perigee: 1,330 km (820 mi). Inclination: 74.0000 deg. Period: 113.90 min.
  • Cosmos 589 - . Payload: Strela-1M no. 50. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6846 . COSPAR: 1973-069B. Apogee: 1,488 km (924 mi). Perigee: 1,415 km (879 mi). Inclination: 74.0000 deg. Period: 114.90 min.
  • Cosmos 590 - . Payload: Strela-1M no. 51. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6847 . COSPAR: 1973-069C. Apogee: 1,487 km (923 mi). Perigee: 1,434 km (891 mi). Inclination: 74.0000 deg. Period: 115.10 min.
  • Cosmos 595 - . Payload: Strela-1M no. 56. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6852 . COSPAR: 1973-069H. Apogee: 1,486 km (923 mi). Perigee: 1,398 km (868 mi). Inclination: 74.0000 deg. Period: 114.70 min.
  • Cosmos 594 - . Payload: Strela-1M no. 55. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6851 . COSPAR: 1973-069G. Apogee: 1,486 km (923 mi). Perigee: 1,380 km (850 mi). Inclination: 74.0000 deg. Period: 114.50 min.
  • Cosmos 593 - . Payload: Strela-1M no. 54. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6850 . COSPAR: 1973-069F. Apogee: 1,486 km (923 mi). Perigee: 1,364 km (847 mi). Inclination: 74.0000 deg. Period: 114.30 min.
  • Cosmos 591 - . Payload: Strela-1M no. 52. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6848 . COSPAR: 1973-069D. Apogee: 1,486 km (923 mi). Perigee: 1,346 km (836 mi). Inclination: 74.0000 deg. Period: 114.10 min.

1973 October 3 - . 02:27 GMT - . Launch Site: White Sands. LV Family: Astrobee. Launch Vehicle: Astrobee D.
  • Infrared Radiometer Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 100 km (60 mi).

1973 October 3 - . 06:00 GMT - . Launch Site: White Sands. LV Family: Astrobee. Launch Vehicle: Astrobee D.
  • Infrared Radiometer Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 102 km (63 mi).

1973 October 3 - . 06:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF07. LV Family: Minuteman. Launch Vehicle: Minuteman 2.
  • FOT GT116M Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 October 3 - . 13:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 596 - . Payload: FEU-170 s/n 1L. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 6.00 days. Decay Date: 1973-10-09 . USAF Sat Cat: 6856 . COSPAR: 1973-070A. Apogee: 287 km (178 mi). Perigee: 206 km (128 mi). Inclination: 65.4000 deg. Period: 89.40 min.

    Area survey photo reconnaissance satellite; returned film capsule. First test of small film return capsules planned for Yantar spacecraft. SpK capsule FEU-170 No. 1L experienced an electrical short circuit, which led to failure to separate the shell of the capsule after reentry, preventing parachute deployment. The capsule crashed into the ground.

  • Cosmos 596 Nauka - . Payload: FEU-170 s/n 1L. Nation: Russia. Agency: RVSN. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: Nauka. Spacecraft: Nauka. Decay Date: 1973-10-09 . USAF Sat Cat: 6856 . COSPAR: 1973-070xx. Apogee: 273 km (169 mi). Perigee: 206 km (128 mi). Inclination: 65.4000 deg. Period: 89.30 min.

1973 October 4 - .
  • X-24 Flight 33 - . Crew: Love, Michael. Payload: X-24B flight 5. Nation: USA. Related Persons: Love, Michael. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. Maximum Speed - 732 kph. Maximum Altitude - 13720 m. Flight Time - 279 sec..

1973 October 4 - . 03:40 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170A.
  • GSFC XRPC X-ray astronomy mission - . Nation: USA. Agency: NASA. Apogee: 152 km (94 mi).

1973 October 5 - . 14:25 GMT - . Launch Site: Antigua. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para, AN/DMQ-9 - . Nation: USA. Agency: MRN. Apogee: 52 km (32 mi).

1973 October 6 - . Launch Site: Vandenberg. Launch Complex: Vandenberg 395-C. LV Family: Titan. Launch Vehicle: Titan II.
  • Operational Test M2-27 - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi). SSTTP M2-27 Target mission.

1973 October 6 - . 03:31 GMT - . Launch Site: El Arenosillo. LV Family: Skylark. Launch Vehicle: Skylark 4 AC.
  • DLR H-GR-56 Optical astronomy / ultraviolet astronomy mission - . Nation: Germany. Agency: DFVLR. Apogee: 260 km (160 mi).

1973 October 6 - . 12:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 597 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 6.00 days. Decay Date: 1973-10-12 . USAF Sat Cat: 6858 . COSPAR: 1973-071A. Apogee: 290 km (180 mi). Perigee: 206 km (128 mi). Inclination: 65.4000 deg. Period: 89.50 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 October 8 - . Launch Site: Baikonur. Launch Complex: Baikonur LC161/35. LV Family: R-36. Launch Vehicle: R-36 8K67PM. FAILURE: Failure.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 October 9 - . 17:49 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para, Arcasonde - . Nation: USA. Agency: MRN. Apogee: 54 km (33 mi).

1973 October 10 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-25 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 October 10 - . 10:45 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 598 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 6.00 days. Decay Date: 1973-10-16 . USAF Sat Cat: 6862 . COSPAR: 1973-072A. Apogee: 334 km (207 mi). Perigee: 208 km (129 mi). Inclination: 72.8000 deg. Period: 89.90 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 October 10 - . 15:15 GMT - . Launch Site: Wallops Island. LV Family: Arcas. Launch Vehicle: Arcas.
  • Nation: USA. Agency: NASA. Apogee: 50 km (31 mi).

1973 October 11 - . 21:34 GMT - . Launch Site: Barking Sands. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 58 km (36 mi).

1973 October 12 - . Launch Site: Baikonur. Launch Complex: Baikonur LC101. LV Family: R-36M. Launch Vehicle: R-36M 15A14. FAILURE: Failure.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 0 km (0 mi).

1973 October 13 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 October 14 - . 00:01 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Sodium release Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 166 km (103 mi).

1973 October 15 - . 08:45 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 599 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-2M satellite. Duration: 13.00 days. Decay Date: 1973-10-28 . USAF Sat Cat: 6867 . COSPAR: 1973-073A. Apogee: 280 km (170 mi). Perigee: 202 km (125 mi). Inclination: 64.9000 deg. Period: 89.30 min. Area survey photo reconnaissance satellite; returned film capsule..

1973 October 16 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 600 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 7.00 days. Decay Date: 1973-10-23 . USAF Sat Cat: 6873 . COSPAR: 1973-074A. Apogee: 340 km (210 mi). Perigee: 205 km (127 mi). Inclination: 72.8000 deg. Period: 90.00 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 October 16 - . 14:00 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 601 - . Payload: DS-P1-Yu s/n 60. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1974-08-15 . Decay Date: 1974-08-15 . USAF Sat Cat: 6875 . COSPAR: 1973-075A. Apogee: 1,135 km (705 mi). Perigee: 195 km (121 mi). Inclination: 81.8000 deg. Period: 98.00 min. Development of systems for air defence and the control of outer space..

1973 October 16 - . 19:41 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Particles Aurora mission - . Nation: UK. Agency: SRC. Apogee: 148 km (91 mi).

1973 October 16 - . 19:43 GMT - . Launch Site: Andoya. LV Family: Skylark. Launch Vehicle: Skylark 6.
  • UK High Latitude Rocket Ionosphere / aurora mission - . Nation: UK. Agency: BAC. Apogee: 267 km (165 mi).

1973 October 17 - . 17:28 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Sodium release Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 136 km (84 mi).

1973 October 17 - . 18:07 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere/Chemical release/Plasma mission - . Nation: Russia. Apogee: 186 km (115 mi).

1973 October 17 - . 21:03 GMT - . Launch Site: San Nicolas. LV Family: Aries. Launch Vehicle: Aries.
  • Dummy payload test - . Nation: USA. Agency: NRL. Apogee: 270 km (160 mi).

1973 October 18 - . Launch Site: Baikonur. LV Family: UR-100. Launch Vehicle: UR-100K.
  • Operational missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 October 18 - . Launch Site: Baikonur. Launch Complex: Baikonur LC177. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 October 18 - . 23:45 GMT - . Launch Site: Eglin. LV Family: Nike Iroquois. Launch Vehicle: Nike Iroquois.
  • Release Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 167 km (103 mi).

1973 October 19 - . 00:00 GMT - . Launch Site: Eglin. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Release Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 206 km (128 mi).

1973 October 19 - . 00:20 GMT - . Launch Site: Eglin. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Release Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 228 km (141 mi).

1973 October 19 - . 00:50 GMT - . Launch Site: Eglin. LV Family: Nike Iroquois. Launch Vehicle: Nike Iroquois.
  • Release Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 173 km (107 mi).

1973 October 19 - . 10:26 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 2-07 - . Payload: Molniya-2. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-2. Decay Date: 1983-07-08 . USAF Sat Cat: 6877 . COSPAR: 1973-076A. Apogee: 40,055 km (24,888 mi). Perigee: 555 km (344 mi). Inclination: 62.8000 deg. Period: 722.90 min.

    Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).


1973 October 19 - . 11:25 GMT - . Launch Site: Eglin. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Release Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 146 km (90 mi).

1973 October 19 - . 23:42 GMT - . Launch Site: Eglin. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Release Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 176 km (109 mi).

1973 October 19 - . 23:53 GMT - . Launch Site: Eglin. LV Family: Tomahawk. Launch Vehicle: Nike Tomahawk.
  • Release YVONNE Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 160 km (90 mi).

1973 October 20 - . 10:14 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 602 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 9.00 days. Decay Date: 1973-10-29 . USAF Sat Cat: 6885 . COSPAR: 1973-077A. Apogee: 309 km (192 mi). Perigee: 169 km (105 mi). Inclination: 72.8000 deg. Period: 89.20 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 October 20 - . 23:43 GMT - . Launch Site: Eglin. LV Family: Nike Iroquois. Launch Vehicle: Nike Iroquois.
  • Release Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 184 km (114 mi).

1973 October 21 - . 00:03 GMT - . Launch Site: Eglin. LV Family: Tomahawk. Launch Vehicle: Paiute Tomahawk. FAILURE: Failure.
  • Release Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 18 km (11 mi).

1973 October 22 - . 09:38 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. LV Family: Lupus. Launch Vehicle: Cockatoo Mk 4.
  • Aeronomy mission - . Nation: Australia. Agency: WRE. Apogee: 138 km (85 mi).

1973 October 23 - . 12:34 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere/Plasma mission - . Nation: Russia. Apogee: 154 km (95 mi).

1973 October 24 - . 03:05 GMT - . Launch Site: Eglin. LV Family: Black Brant. Launch Vehicle: Black Brant IVA.
  • VLF Propagation Ionosphere VLF mission - . Nation: USA. Agency: AFCRL. Apogee: 609 km (378 mi).

1973 October 24 - . 08:15 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • JHU UVT F7 Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 183 km (113 mi).

1973 October 25 - . 03:07 GMT - . Launch Site: Eglin. LV Family: Black Brant. Launch Vehicle: Black Brant IVA.
  • VLF Propagation Ionosphere VLF mission - . Nation: USA. Agency: AFCRL. Apogee: 600 km (370 mi).

1973 October 26 - . 02:26 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Delta 1604.
  • Explorer 50 - . Payload: IMP J. Mass: 371 kg (817 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: IMP. Spacecraft: IMP. USAF Sat Cat: 6893 . COSPAR: 1973-078A. Apogee: 244,361 km (151,838 mi). Perigee: 190,749 km (118,525 mi). Inclination: 31.6000 deg. Period: 17,576.70 min. Solar flare and radiation monitor. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1973 October 27 - . 11:09 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 603 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-11-09 . USAF Sat Cat: 6900 . COSPAR: 1973-079A. Apogee: 357 km (221 mi). Perigee: 205 km (127 mi). Inclination: 72.9000 deg. Period: 90.10 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 October 29 - . 14:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Vostok 8A92M.
  • Cosmos 604 - . Payload: Tselina-D no. 5. Mass: 2,000 kg (4,400 lb). Nation: Russia. Agency: MOM. Program: Tselina. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Tselina-D. Spacecraft: Tselina-D. Decay Date: 1992-01-19 . USAF Sat Cat: 6907 . COSPAR: 1973-080A. Apogee: 424 km (263 mi). Perigee: 413 km (256 mi). Inclination: 81.2000 deg. Period: 92.90 min.

1973 October 30 - . Launch Site: Plesetsk. LV Family: R-16. Launch Vehicle: R-16U.
  • UBP R-16 PL73-04 - . Nation: Russia. Agency: RVSN. Apogee: 1,210 km (750 mi).

1973 October 30 - . 00:37 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout A-1.
  • Transit O-20 - . Mass: 58 kg (127 lb). Nation: USA. Agency: USN. Program: Transit. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: Transit. Spacecraft: Transit. USAF Sat Cat: 6909 . COSPAR: 1973-081A. Apogee: 1,120 km (690 mi). Perigee: 885 km (549 mi). Inclination: 89.8000 deg. Period: 105.20 min. Operational life over 20 years..

1973 October 30 - . 08:08 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Plasma mission - . Nation: Russia. Apogee: 150 km (90 mi).

1973 October 30 - . 18:50 GMT - . Launch Site: Andoya. LV Family: Skylark. Launch Vehicle: Skylark 6.
  • UK High Latitude Rocket Ionosphere / aurora mission - . Nation: UK. Agency: BAC. Apogee: 229 km (142 mi).

1973 October 30 - . 19:00 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Intercosmos 10 - . Payload: DS-U2-IK s/n 3. Mass: 550 kg (1,210 lb). Nation: Russia. Agency: IK. Program: DS. Class: Earth. Type: Ionosphere satellite. Spacecraft Bus: DS. Spacecraft: DS-U2-IK. Completed Operations Date: 1974-06-07 . Decay Date: 1977-07-01 . USAF Sat Cat: 6911 . COSPAR: 1973-082A. Apogee: 1,453 km (902 mi). Perigee: 257 km (159 mi). Inclination: 74.0000 deg. Period: 102.00 min. Geophysical research at high latitudes to study the electromagnetic coupling of the earth's magnetosphere and ionosphere..

1973 October 30 - . 19:15 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / e, p Aurora mission - . Nation: UK. Agency: SRC. Apogee: 133 km (82 mi).

1973 October 30 - . 20:04 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / e, p Aurora mission - . Nation: UK. Agency: SRC. Apogee: 135 km (83 mi).

1973 October 31 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-40 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 October 31 - . 18:24 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/3. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Cosmos 605 - . Payload: Bion no. 1. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Biology. Type: Biology satellite. Spacecraft Bus: Vostok. Spacecraft: Bion. Duration: 21.50 days. Decay Date: 1973-11-22 . USAF Sat Cat: 6913 . COSPAR: 1973-083A. Apogee: 403 km (250 mi). Perigee: 213 km (132 mi). Inclination: 62.8000 deg. Period: 90.70 min. Investigation of the influence of space flight on living organisms and testing of life-support systems for biological entities. Capsule recovered 53 deg 29 min N, 65 deg 27 min E..

1973 November 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 Nov - . Launch Site: Wallops Island. LV Family: Terrier. Launch Vehicle: Terrier Recruit.
  • SAMS R487401 - . Nation: USA. Agency: NASA. Apogee: 4.00 km (2.40 mi).

1973 Nov? - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 November 1 - . 15:30 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 185 km (114 mi).

1973 November 1 - . 17:30 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 165 km (102 mi).

1973 November 2 - . 13:01 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC41/1. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Cosmos 606 - . Payload: Oko #2. Mass: 1,250 kg (2,750 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Early warning satellite. Spacecraft Bus: Oko. Spacecraft: Oko. USAF Sat Cat: 6916 . COSPAR: 1973-084A. Apogee: 35,385 km (21,987 mi). Perigee: 4,964 km (3,084 mi). Inclination: 69.5000 deg. Period: 717.70 min. Replaced Cosmos 520. Covered Oko constellation plane 3 - 359 degree longitude of ascending node..

1973 November 2 - . 16:30 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Extreme ultraviolet Solar extreme ultraviolet mission - . Nation: USA. Agency: AFCRL. Apogee: 233 km (144 mi).

1973 November 3 - .
  • Mariner 10 first flyby of Venus - . Nation: USA. Spacecraft Bus: Mariner. Spacecraft: Mariner 10. The vehicle's first planetary encounter was with Venus on November 3, 1973. Mariner 10 took some 4,000 photos of Venus, which revealed a nearly round planet enveloped in smooth cloud layers..

1973 November 3 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 November 3 - . 00:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-38 operational test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 November 3 - . 05:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC36B. LV Family: Atlas. Launch Vehicle: Atlas SLV-3D Centaur.
  • Mariner 10 - . Payload: Mariner 73J. Mass: 526 kg (1,159 lb). Nation: USA. Agency: JPL, NASA. Program: Mariner. Class: Mercury. Type: Mercury probe. Spacecraft Bus: Mariner. Spacecraft: Mariner 10. USAF Sat Cat: 6919 . COSPAR: 1973-085A.

    An Atlas/Agena D launched Mariner 10 (Mariner Venus-Mercury) from the Eastern Test Range. The spacecraft was scheduled for Venus f lyby in February 1974 and Mercury in March 1974 - it would be the first space probe ever to approach Mercury. Mariner 10 was the first spacecraft to reach Mercury. Mariner 10 was placed in a parking orbit for 25 minutes after launch, then accelerated to a trans-Venus escape trajectory. The television and ultraviolet experiments were trained on the comet Kohoutek while the spacecraft was en route to its destination. The vehicle's first planetary encounter was with Venus on February 5, 1974, at a distance of 4200 km. Mariner 10 took 4,000 photos of Venus, which revealed a nearly round planet enveloped in smooth cloud layers. The gravity of Venus bent the orbit of the spacecraft and sent it towards Mercury. It crossed the orbit of Mercury on March 29, 1974, at 20:46 GMT, at a distance of 704 km from the surface. Photographs taken during the pass revealed an intensely cratered, Moon-like surface and a faint atmosphere of mostly helium. After the first flyby, Mariner 10 entered solar orbit, which permitted two more rendezvous with Mercury. On September 21, 1974, the second Mercury rendezvous, at an altitude of about 47,000 km, provided another opportunity to photograph the sunlit side of the planet and the south polar region. The third and final Mercury encounter on March 16, 1975, at an altitude of 327 km, yielded 300 photographs and magnetic field measurements. The vehicle was turned off March 24, 1975 when the supply of attitude-control gas was depleted.


1973 November 4 - . Launch Site: Baikonur. Launch Complex: Baikonur LC173. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 November 5 - . Launch Site: Baikonur. Launch Complex: Baikonur LC103. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 November 6 - . 15:40 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 167 km (103 mi).

1973 November 6 - . 17:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 0300.
  • NOAA 3 - . Payload: ITOS F. Mass: 345 kg (760 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft Bus: ITOS. Spacecraft: ITOS. USAF Sat Cat: 6920 . COSPAR: 1973-086A. Apogee: 1,510 km (930 mi). Perigee: 1,501 km (932 mi). Inclination: 102.1000 deg. Period: 116.10 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1973 November 7 - . 14:00 GMT - . Launch Site: Koroni. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 92 km (57 mi).

1973 November 8 - . 16:06 GMT - . Launch Site: Wallops Island. LV Family: Deacon. Launch Vehicle: Rocketsonde.
  • Met Para - . Nation: USA. Agency: MRN. Apogee: 63 km (39 mi).

1973 November 9 - . 17:15 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 169 km (105 mi).

1973 November 9 - . 18:00 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 175 km (108 mi).

1973 November 10 - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.
  • Titan 23D no. 8 stage - . Payload: SSF 32. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: KH-9. Spacecraft: KH-9. Decay Date: 1973-11-13 . USAF Sat Cat: 6929 . COSPAR: 1973-088C. Apogee: 508 km (315 mi). Perigee: 486 km (301 mi). Inclination: 96.3000 deg. Period: 94.50 min. ABM monitoring. .

1973 November 10 - . 12:38 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 607 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 12.00 days. Decay Date: 1973-11-22 . USAF Sat Cat: 6926 . COSPAR: 1973-087A. Apogee: 341 km (211 mi). Perigee: 203 km (126 mi). Inclination: 72.8000 deg. Period: 89.90 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable (?)..

1973 November 10 - . 20:09 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.
  • KH-9 no. 07 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: KH-9. Spacecraft: KH-9. Decay Date: 1974-03-13 . USAF Sat Cat: 6928 . COSPAR: 1973-088A. Apogee: 275 km (170 mi). Perigee: 158 km (98 mi). Inclination: 96.9000 deg. Period: 88.80 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OPS 7705 - . Payload: SSF-B No. 24. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: SSF. Spacecraft: SSF. Decay Date: 1978-12-26 . USAF Sat Cat: 6931 . COSPAR: 1973-088B. Apogee: 505 km (313 mi). Perigee: 488 km (303 mi). Inclination: 96.3000 deg. Period: 94.50 min. Radar monitoring..
  • OPS 6630 P/L 2 - . Payload: SSF-C No. 4 / OPS 6630. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: SSF. Spacecraft: SSF. USAF Sat Cat: 6938 . COSPAR: 1973-088D. Apogee: 1,457 km (905 mi). Perigee: 1,414 km (878 mi). Inclination: 97.0000 deg. Period: 114.60 min.

1973 November 11 - . 12:00 GMT - . Launch Site: Koroni. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 82 km (50 mi).

1973 November 12 - .
  • Death of Anatoli Alekeseyevich Vasilyev - . Nation: Russia. Related Persons: Vasilyev. Russian officer. Commander of GURVO 1964-1967. Chaired the Scientific-Technical Committee of the Strategic Missile Forces 1967-1969..

1973 November 12 - . 14:00 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Astronomy mission - . Nation: USA. Agency: NASA. Apogee: 172 km (106 mi).

1973 November 12 - . 14:50 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA8. LV Family: Aerobee. Launch Vehicle: Aerobee 170.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 154 km (95 mi).

1973 November 13 - . 09:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKMR. Launch Platform: NOKV. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 88 km (54 mi).

1973 November 14 - . Launch Site: Woomera. Launch Complex: Woomera LA2 HRV. LV Family: Rook. Launch Vehicle: Jabiru 3.
1973 November 14 - . 20:40 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 1-25 - . Payload: Molniya-1. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-1. Decay Date: 1979-05-26 . USAF Sat Cat: 6932 . COSPAR: 1973-089A. Apogee: 39,607 km (24,610 mi). Perigee: 461 km (286 mi). Inclination: 64.0000 deg. Period: 712.00 min. Operation of a system of long range telephone-telegraph radiocommunication, and transmission of USSR Central Television programmes to the stations of the Orbita network. .

1973 November 15 - .
  • X-24 Flight 34 - . Crew: Manke. Payload: X-24B flight 6. Nation: USA. Related Persons: Manke. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. First power flight. Maximum Speed - 961 kph. Maximum Altitude - 16080 m. Flight Time - 404 sec..

1973 November 16 - . 14:01 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39B. Launch Platform: LUT1. LV Family: Saturn I. Launch Vehicle: Saturn IB.
  • Skylab 4 - . Call Sign: Skylab. Crew: Carr, Gibson, Edward, Pogue. Backup Crew: Brand, Lenoir, Lind. Payload: Apollo CSM 118. Mass: 20,847 kg (45,959 lb). Nation: USA. Related Persons: Brand, Carr, Gibson, Edward, Lenoir, Lind, Pogue. Agency: NASA Houston. Program: Skylab. Class: Moon. Type: Manned lunar spacecraft. Flight: Skylab 4. Spacecraft Bus: Apollo CSM. Spacecraft: Apollo CSM. Duration: 84.05 days. Decay Date: 1974-02-08 . USAF Sat Cat: 6936 . COSPAR: 1973-090A. Apogee: 437 km (271 mi). Perigee: 422 km (262 mi). Inclination: 50.0000 deg. Period: 93.10 min.

    Final Skylab mission; included observation and photography of Comet Kohoutek among numerous experiments. Completed 1,214 Earth orbits and four EVAs totalling 22 hours, 13 minutes. Increased manned space flight time record by 50%. Rebellion by crew against NASA Ground Control overtasking led to none of the crew ever flying again. Biological experiments included two Mummichog fish (Fundulus heteroclitus).

    The space vehicle consisted of a modified Apollo CSM and a Saturn IB launch vehicle. All launch phase events were normal, and the CSM was inserted into a 150.1- by 227.08-km orbit. The rendezvous sequence was performed according to the anticipated timeline. Stationkeeping was initiated about seven and one-half hours after liftoff, and hard docking was achieved about 30 minutes later following two unsuccessful docking attempts. Planned duration of the mission was 56 days, with the option of extending it to a maximum of 84 days.


1973 November 16 - . 22:45 GMT - . Launch Site: Andoya. LV Family: Skylark. Launch Vehicle: Skylark 6.
  • UK High Latitude Rocket Ionosphere / aurora mission - . Nation: UK. Agency: BAC. Apogee: 216 km (134 mi).

1973 November 16 - . 23:04 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Electric field Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 175 km (108 mi).

1973 November 16 - . 23:42 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Sodium release Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 175 km (108 mi).

1973 November 17 - . 00:23 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Substorm Aurora mission - . Nation: UK. Agency: SRC. Apogee: 143 km (88 mi).

1973 November 17 - . 01:01 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Sodium release Atmospheric mission - . Nation: UK. Agency: SRC. Apogee: 175 km (108 mi).

1973 November 17 - . 01:22 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Substorm Aurora mission - . Nation: UK. Agency: SRC. Apogee: 132 km (82 mi).

1973 November 18 - . 21:22 GMT - . Launch Site: Natal. LV Family: Honest John. Launch Vehicle: Javelin.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 650 km (400 mi).

1973 November 18 - . 23:34 GMT - . Launch Site: CELPA. LV Family: Rigel. Launch Vehicle: Rigel.
  • Ionosphere mission - . Nation: Argentina. Agency: CONAE. Apogee: 250 km (150 mi).

1973 November 19 - . 23:35 GMT - . Launch Site: CELPA. LV Family: Rigel. Launch Vehicle: Rigel.
  • Ionosphere mission - . Nation: Argentina. Agency: CONAE. Apogee: 260 km (160 mi).

1973 November 20 - . Launch Site: Baikonur. Launch Complex: Baikonur LC104. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 November 20 - . 12:29 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 608 - . Payload: DS-P1-Yu s/n 69. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1974-07-13 . Decay Date: 1974-07-10 . USAF Sat Cat: 6941 . COSPAR: 1973-091A. Apogee: 500 km (310 mi). Perigee: 269 km (167 mi). Inclination: 70.9000 deg. Period: 92.20 min. Development of systems for air defence and the control of outer space..

1973 November 21 - .
  • Skylab 2 - Wakeup Song: The Lonely Bull - . Flight: Skylab 2 . "The Lonely Bull" by [Herb Alpert & Tijuana Brass]? CAPCOM: Henry Hartsfield.

1973 November 21 - . 10:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 609 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4M. Duration: 13.00 days. Decay Date: 1973-12-04 . USAF Sat Cat: 6943 . COSPAR: 1973-092A. Apogee: 335 km (208 mi). Perigee: 175 km (108 mi). Inclination: 69.9000 deg. Period: 89.60 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 November 22 - .
  • Skylab 2 - Wakeup Song: A Walk in the Black Forest - . Flight: Skylab 2 . "A Walk in the Black Forest" Symbolic of the fact that the crew of Skylab 4 will be taking a walk in the blackness of space to repair the control system for an Earth-scanning antenna. CAPCOM: Henry Hartsfield.

1973 November 22 - . 09:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF04. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • FOT GT42GM-1 Follow-on Test launch - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1973 November 22 - . 21:29 GMT - . Launch Site: Natal. LV Family: Black Brant. Launch Vehicle: Black Brant IVB.
  • Ionosphere / plasma mission - . Nation: Germany. Agency: DFVLR. Apogee: 650 km (400 mi).

1973 November 22 - . 21:29 GMT - . Launch Site: Natal. LV Family: Honest John. Launch Vehicle: Javelin.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 650 km (400 mi).

1973 November 22 - . 23:39 GMT - . Launch Site: CELPA. LV Family: Rigel. Launch Vehicle: Castor (A).
1973 November 23 - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 250 km (150 mi).

1973 November 23 - . 17:42 GMT - .
1973 November 24 - .
  • Skylab 2 - Wakeup Song: Paralyzed - . Flight: Skylab 2 . "Paralyzed" by Legendary Stardust Cowboy CAPCOM: Bob Crippen.

1973 November 24 - . 09:10 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKMR. Launch Platform: NOKV. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 88 km (54 mi).

1973 November 25 - . 22:47 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant VA. FAILURE: Failure.
  • Auroral mission - . Nation: Canada. Agency: NRCC. Apogee: 103 km (64 mi).

1973 November 26 - . 05:35 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 6 AC.
  • Solar corona Solar x-ray mission - . Nation: UK. Agency: BAC. Apogee: 238 km (147 mi).

1973 November 27 - . 00:08 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 610 - . Mass: 750 kg (1,650 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Tselina-O. Spacecraft: Tselina-O. Decay Date: 1980-09-15 . USAF Sat Cat: 6950 . COSPAR: 1973-093A. Apogee: 545 km (338 mi). Perigee: 515 km (320 mi). Inclination: 74.0000 deg. Period: 95.20 min. Possible ELINT satellite..

1973 November 27 - . 01:51 GMT - . Launch Site: El Arenosillo. LV Family: Skylark. Launch Vehicle: Skylark 4 AC.
  • DLR H-GR-55 Optical astronomy / ultraviolet astronomy mission - . Nation: Germany. Agency: DFVLR. Apogee: 246 km (152 mi).

1973 November 27 - . 15:06 GMT - . Launch Site: Poker Flat. LV Family: Black Brant. Launch Vehicle: Black Brant IVA.
  • Skylab Ba+ Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 552 km (342 mi).

1973 November 28 - . 09:29 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 611 - . Payload: DS-P1-Yu s/n 64. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-Yu. Completed Operations Date: 1974-06-20 . Decay Date: 1974-06-19 . USAF Sat Cat: 6952 . COSPAR: 1973-094A. Apogee: 480 km (290 mi). Perigee: 269 km (167 mi). Inclination: 70.1000 deg. Period: 92.00 min. Development of systems for air defence and the control of outer space..

1973 November 28 - . 11:43 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 612 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 13.00 days. Decay Date: 1973-12-11 . USAF Sat Cat: 6953 . COSPAR: 1973-095A. Apogee: 339 km (210 mi). Perigee: 188 km (116 mi). Inclination: 72.8000 deg. Period: 89.80 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 November 28 - . 22:13 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: MR-12. Launch Vehicle: MR-12.
  • D-75MG - . Nation: Russia. Apogee: 150 km (90 mi).

1973 November 29 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-25 Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 November 29 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-41 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 November 30 - . 05:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 613 - . Payload: Soyuz 7K-T s/n 34L. Mass: 6,675 kg (14,715 lb). Nation: Russia. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Spacecraft Bus: Soyuz. Spacecraft: Soyuz 7K-T. Duration: 60.00 days. Decay Date: 1974-01-29 . USAF Sat Cat: 6957 . COSPAR: 1973-096A. Apogee: 276 km (171 mi). Perigee: 199 km (123 mi). Inclination: 51.6000 deg. Period: 89.30 min. Unmanned Soyuz test flight. Recovered January 29, 1974 5:29 GMT. Soyuz 7K-T duration test..

1973 November 30 - . 13:08 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 1-26 - . Payload: Molniya-1. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-1. Decay Date: 1985-06-09 . USAF Sat Cat: 6958 . COSPAR: 1973-097A. Apogee: 40,829 km (25,369 mi). Perigee: 619 km (384 mi). Inclination: 62.9000 deg. Period: 740.00 min. Uncertain if Molniya-1T model was Molniya-1 or Molniya-1T. Operation of a system of long range telephone-telegraph radiocommunication, and transmission of USSR Central Television programmes to the stations of the Orbita network..

1973 December 1 - .
  • Death of Josef Maria Boehm - . Nation: Austria, Germany. Related Persons: Boehm. Austrian-German engineer in WW2, member of the Rocket Team in the United States thereafter..

1973 December 1 - . Launch Site: Plesetsk. LV Family: Temp-2S. Launch Vehicle: Temp-2S.
  • Test mission - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 1 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 2 - .
  • Skylab 2 - Wakeup Song: Misty - . Flight: Skylab 2 . "Misty" by Julie London CAPCOM: Bob Crippen.

1973 December 2 - . 14:10 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Barium release Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 140 km (80 mi).

1973 December 3 - .
1973 December 3 - .
  • Skylab 2 - Wakeup Song: The Sea - . Flight: Skylab 2 . "The Sea" by Rod McKuen CAPCOM: Bob Crippen.

1973 December 4 - .
  • Skylab 2 - Wakeup Song: Muskrat Ramble - . Flight: Skylab 2 . "Muskrat Ramble" by Firehouse Five Plus Two CAPCOM: Bob Crippen.

1973 December 4 - . 13:45 GMT - . Launch Site: Fort Churchill. LV Family: Skua. Launch Vehicle: Skua 2.
  • Oxygen profile Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 124 km (77 mi).

1973 December 4 - . 15:00 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 614 - . Mass: 750 kg (1,650 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: KAUR-1. Spacecraft: Strela-2M. USAF Sat Cat: 6965 . COSPAR: 1973-098A. Apogee: 787 km (489 mi). Perigee: 751 km (466 mi). Inclination: 74.1000 deg. Period: 100.20 min.

1973 December 4 - . 15:20 GMT - . Launch Site: Poker Flat. LV Family: Black Brant. Launch Vehicle: Black Brant IVA.
  • Skylab Ba+ Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 570 km (350 mi).

1973 December 4 - . 18:00 GMT - . Launch Site: Fort Churchill. LV Family: Skua. Launch Vehicle: Skua 2.
  • Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 108 km (67 mi).

1973 December 4 - . 22:34 GMT - . Launch Site: Fort Churchill. LV Family: Skua. Launch Vehicle: Skua 2.
  • Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 108 km (67 mi).

1973 December 5 - . 06:52 GMT - . Launch Site: Fort Churchill. LV Family: Skua. Launch Vehicle: Skua 2.
  • Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 110 km (60 mi).

1973 December 5 - . 14:05 GMT - . Launch Site: Fort Churchill. LV Family: Skua. Launch Vehicle: Skua 2.
  • Aeronomy mission - . Nation: Canada. Agency: NRCC. Apogee: 110 km (60 mi).

1973 December 5 - . 23:23 GMT - . Launch Site: Andoya. LV Family: Skylark. Launch Vehicle: Skylark 4.
  • UK High Latitude Rocket Aurora / ionosphere mission - . Nation: UK. Agency: BAC. Apogee: 222 km (137 mi).

1973 December 6 - .
  • Skylab 2 - Wakeup Song: Silent Night - . Flight: Skylab 2 . "Silent Night" by Barbra Streisand; a message from the people of Germany followed by German Christmas songs. Santa Claus Day in Germany falls on this date..

1973 December 6 - . Launch Site: Woomera. Launch Complex: Woomera LA2 HRV. LV Family: Rook. Launch Vehicle: Jabiru 3.
1973 December 6 - . 07:11 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / Barium release Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 140 km (80 mi).

1973 December 6 - . 09:18 GMT - . Launch Site: Andoya. LV Family: Petrel. Launch Vehicle: Petrel.
  • High Latitude / ELF-VLF Ionosphere mission - . Nation: UK. Agency: SRC. Apogee: 140 km (80 mi).

1973 December 6 - . 17:59 GMT - . Launch Site: Wallops Island. LV Family: Trailblazer test vehicle. Launch Vehicle: Trailblazer 2.
  • AFCRL TB2-5 Re-entry vehicle test - . Nation: USA. Agency: AFCRL. Apogee: 303 km (188 mi).

1973 December 7 - .
  • Skylab 2 - Wakeup Song: The Party's Over - . Flight: Skylab 2 . "The Party's Over" by Julie London.

1973 December 7 - . 11:32 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere/Chemical release/Plasma mission - . Nation: Russia. Apogee: 189 km (117 mi).

1973 December 7 - . 11:56 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere mission - . Nation: Russia. Apogee: 150 km (90 mi).

1973 December 9 - . 09:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKMR. Launch Platform: NOKV. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 86 km (53 mi).

1973 December 10 - .
  • Skylab 2 - Wakeup Song: Lonely Bull (El Solo Toro) - . Flight: Skylab 2 . "Lonely Bull (El Solo Toro)" by Herb Alpert & Tijuana Brass.

1973 December 10 - . 19:10 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Black Brant. Launch Vehicle: Black Brant VC.
  • CALROC 3 Solar extreme ultraviolet mission - . Nation: USA. Agency: NASA. Apogee: 269 km (167 mi).

1973 December 10 - . 19:30 GMT - . Launch Site: Fort Churchill. LV Family: Tomahawk. Launch Vehicle: Ute Tomahawk.
  • Composition Aeronomy mission - . Nation: USA. Agency: USAF CRL. Apogee: 101 km (62 mi).

1973 December 11 - .
  • Skylab 2 - Wakeup Song: Peanut Vendor - . Flight: Skylab 2 . "Peanut Vendor" by Chet Atkins CAPCOM: Henry Hartsfield.

1973 December 11 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF03. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • HK-4? Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 December 12 - .
  • Kamanin makes his first diary entry in two years. - . Nation: Russia. Related Persons: Brezhnev, Khrushchev, Ustinov. Program: Salyut.

    Since Soyuz 11 and his subsequent 'retirement', the Soviet Union has launched two space stations that failed in orbit, and made only one two-day Soyuz flight. Meanwhile the Americans had run successfully their entire Skylab program. The fourth N1 exploded on 23 November 1972. Ustinov has thrown away tens of billions of roubles on that useless project. Soyuz 13 landed yesterday - the first Soviet manned spaceflight not under Kamanin's command. Khrushchev made many mistakes, but Brezhnev continues to make even more. Kamanin feels his country is however not fit for democracy, that it needs discipline - otherwise there will be anarchy.


1973 December 12 - .
  • X-24 Flight 35 - . Crew: Manke. Payload: X-24B flight 7. Nation: USA. Related Persons: Manke. Class: Manned. Type: Manned spaceplane. Spacecraft Bus: X-24. Spacecraft: X-24B. Maximum Speed - 1038 kph. Maximum Altitude - 19080 m. Flight Time - 434 sec..

1973 December 12 - . Launch Site: Wallops Island. LV Family: Athena RTV. Launch Vehicle: Athena RTV.
  • Re-entry Vehicle test - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1973 December 12 - . Launch Site: Kourou. LV Family: Arcas. Launch Vehicle: Super Arcas.
  • EXAMETNET 35-42 - . Nation: France. Agency: CNES. Apogee: 75 km (46 mi).

1973 December 13 - .
  • Skylab 2 - Wakeup Song: Eli's Coming - . Flight: Skylab 2 . "Eli's Coming" by Three Dog Night.

1973 December 13 - . 11:10 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: R-12. Launch Vehicle: Kosmos 11K63.
  • Cosmos 615 - . Payload: DS-P1-I s/n 13. Mass: 400 kg (880 lb). Nation: Russia. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft Bus: DS. Spacecraft: DS-P1-I. Completed Operations Date: 1975-06-16 . Decay Date: 1975-12-17 . USAF Sat Cat: 6971 . COSPAR: 1973-099A. Apogee: 834 km (518 mi). Perigee: 270 km (160 mi). Inclination: 71.0000 deg. Period: 95.70 min. Operational radar target for the ABM forces..

1973 December 13 - . 23:57 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan IIIC.
  • DSCS II-03 - . Payload: DSCS II F-3 / OPS 9433. Mass: 566 kg (1,247 lb). Nation: USA. Agency: USAF. Program: DSCS. Class: Communications. Type: Military communications satellite. Spacecraft Bus: DSCS II. Spacecraft: DSCS II. Completed Operations Date: 1982-08-01 . USAF Sat Cat: 6973 . COSPAR: 1973-100A. Apogee: 36,661 km (22,780 mi). Perigee: 36,413 km (22,625 mi). Inclination: 13.9000 deg. Period: 1,474.60 min.

    An Air Force Titan IIIC, launched by the 6555th Aerospace Test Group from the Eastern Test Range, boosted two Program 777 Defense Satellite Communications System; 13 deg W. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 13 deg W in 1974-1977; over the Atlantic Ocean 57-66 deg W in 1977-1979 As of 3 September 2001 located at 104.01 deg E drifting at 9.429 deg W per day. As of 2007 Mar 9 located at 148.24W drifting at 9.427W degrees per day.

  • DSCS II-04 - . Payload: DSCS II F-4 / OPS 9434. Mass: 566 kg (1,247 lb). Nation: USA. Agency: USAF. Program: DSCS. Class: Communications. Type: Military communications satellite. Spacecraft Bus: DSCS II. Spacecraft: DSCS II. Completed Operations Date: 1993-12-20 . USAF Sat Cat: 6974 . COSPAR: 1973-100B. Apogee: 36,837 km (22,889 mi). Perigee: 36,300 km (22,500 mi). Inclination: 13.5000 deg. Period: 1,476.30 min.

    Defense Satellite Communications System; 175 deg E. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 175 deg E in 1974-1977; over the Indian Ocean 65 deg E in 1977-1980; over the Indian Ocean 60-61 deg E in 1980-1984; over the Indian Ocean 66 deg E in 1984-1987; over the Americas at 56-62 deg W in 1989-1993 As of 5 September 2001 located at 138.02 deg W drifting at 9.919 deg W per day. As of 2007 Mar 3 located at 146.85E drifting at 9.914W degrees per day.


1973 December 14 - .
  • Skylab 2 - Wakeup Song: Blue Tail Fly - . Flight: Skylab 2 . "Blue Tail Fly" by Burl Ives CAPCOM: Richard Truly.

1973 December 14 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1B.
  • SSTTP M2-20A Target mission - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 December 15 - . 14:30 GMT - . Launch Site: Thumba. LV Family: M-100. Launch Vehicle: M-100.
  • ISRO-8.164/TERLS-619 - . Nation: Russia. Apogee: 87 km (54 mi).

1973 December 16 - . 06:18 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 1900.
  • Explorer 51 - . Payload: AE C. Mass: 658 kg (1,450 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Atmosphere satellite. Spacecraft Bus: AE. Spacecraft: AE. Decay Date: 1978-12-12 . USAF Sat Cat: 6977 . COSPAR: 1973-101A. Apogee: 4,306 km (2,675 mi). Perigee: 155 km (96 mi). Inclination: 68.1000 deg. Period: 132.50 min. Atmospheric Explorer; upper atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1973 December 17 - . Launch Site: Baikonur. Launch Complex: Baikonur LC140/18. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 17 - . 12:00 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511M.
  • Cosmos 616 - . Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MT. Duration: 11.00 days. Decay Date: 1973-12-28 . USAF Sat Cat: 6979 . COSPAR: 1973-102A. Apogee: 332 km (206 mi). Perigee: 206 km (128 mi). Inclination: 72.9000 deg. Period: 89.90 min. Military topography satellite; returned film capsule; separated science capsule..

1973 December 18 - . 11:55 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 13 - . Call Sign: Kavkas (Caucasus ). Crew: Klimuk, Lebedev. Backup Crew: Vorobyov, Yazdovsky. Payload: Soyuz 7K-T s/n 33A. Mass: 6,560 kg (14,460 lb). Nation: Russia. Related Persons: Klimuk, Lebedev, Vorobyov, Yazdovsky. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 13. Spacecraft Bus: Soyuz. Spacecraft: Soyuz 7K-T. Duration: 7.87 days. Decay Date: 1973-12-26 . USAF Sat Cat: 6982 . COSPAR: 1973-103A. Apogee: 247 km (153 mi). Perigee: 188 km (116 mi). Inclination: 51.6000 deg. Period: 88.80 min.

    A unique flight of the 7K-T/AF modification of the Soyuz spacecraft. The orbital module was dominated by the large Orion 2 astrophysical camera. The crew conducted astrophysical observations of stars in the ultraviolet range. Additional experiments included spectrozonal photography of specific areas of the earth's surface, and continued testing of space craft's on-board systems.


1973 December 19 - . 09:43 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 617 - . Payload: Strela-1M no. 57. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6985 . COSPAR: 1973-104A. Apogee: 1,484 km (922 mi). Perigee: 1,334 km (828 mi). Inclination: 74.0000 deg. Period: 114.00 min.
  • Cosmos 620 - . Payload: Strela-1M no. 60. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6988 . COSPAR: 1973-104D. Apogee: 1,493 km (927 mi). Perigee: 1,459 km (906 mi). Inclination: 74.0000 deg. Period: 115.50 min.
  • Cosmos 622 - . Payload: Strela-1M no. 62. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6990 . COSPAR: 1973-104F. Apogee: 1,485 km (922 mi). Perigee: 1,370 km (850 mi). Inclination: 74.0000 deg. Period: 114.40 min.
  • Cosmos 623 - . Payload: Strela-1M no. 63. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6991 . COSPAR: 1973-104G. Apogee: 1,485 km (922 mi). Perigee: 1,387 km (861 mi). Inclination: 74.0000 deg. Period: 114.60 min.
  • Cosmos 624 - . Payload: Strela-1M no. 64. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6992 . COSPAR: 1973-104H. Apogee: 1,485 km (922 mi). Perigee: 1,351 km (839 mi). Inclination: 74.0000 deg. Period: 114.20 min.
  • Cosmos 619 - . Payload: Strela-1M no. 59. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6987 . COSPAR: 1973-104C. Apogee: 1,488 km (924 mi). Perigee: 1,424 km (884 mi). Inclination: 74.0000 deg. Period: 115.00 min.
  • Cosmos 618 - . Payload: Strela-1M no. 58. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6986 . COSPAR: 1973-104B. Apogee: 1,487 km (923 mi). Perigee: 1,444 km (897 mi). Inclination: 74.0000 deg. Period: 115.20 min.
  • Cosmos 621 - . Payload: Strela-1M no. 61. Mass: 40 kg (88 lb). Nation: Russia. Agency: MO. Program: Strela. Class: Communications. Type: Military store-dump communications satellite. Spacecraft Bus: Strela. Spacecraft: Strela-1M. USAF Sat Cat: 6989 . COSPAR: 1973-104E. Apogee: 1,485 km (922 mi). Perigee: 1,406 km (873 mi). Inclination: 74.0000 deg. Period: 114.80 min.

1973 December 19 - . 22:05 GMT - . Launch Site: White Sands. LV Family: Aerobee. Launch Vehicle: Aerobee 200A.
  • Solar mission - . Nation: USA. Agency: NASA. Apogee: 220 km (130 mi).

1973 December 20 - . 15:41 GMT - . Launch Site: Fort Churchill. LV Family: Loki. Launch Vehicle: Loki Dart.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 64 km (39 mi).

1973 December 21 - . Launch Site: Baikonur. Launch Complex: Baikonur LC162/36. LV Family: R-36. Launch Vehicle: R-36 8K67PM.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 21 - . Launch Site: Baikonur. Launch Complex: Baikonur LC177. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 21 - . 12:30 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 625 - . Mass: 6,300 kg (13,800 lb). Nation: Russia. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: Vostok. Spacecraft: Zenit-4MK. Duration: 13.00 days. Decay Date: 1974-01-03 . USAF Sat Cat: 6995 . COSPAR: 1973-105A. Apogee: 321 km (199 mi). Perigee: 204 km (126 mi). Inclination: 72.8000 deg. Period: 89.80 min. High resolution photo reconnaissance satellite; returned film capsule; maneuverable..

1973 December 22 - . 08:05 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF08. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • Research and development launch - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1973 December 23 - .
  • Skylab 2 - Wakeup Song: The Little Drummer Boy - . Flight: Skylab 2 . "The Little Drummer Boy" Christmas music.

1973 December 23 - . 13:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 84 km (52 mi).

1973 December 24 - .
  • Skylab 2 - Wakeup Song: The Twelve Days of Christmas - . Flight: Skylab 2 . "The Twelve Days of Christmas" ,"The Little Drummer Boy".

1973 December 24 - . 13:00 GMT - . Launch Site: Sea Launch Area. Launch Pad: UNKO. Launch Platform: SHIR. LV Family: M-100. Launch Vehicle: M-100.
  • Nation: Russia. Apogee: 91 km (56 mi).

1973 December 25 - .
  • Skylab 2 - Wakeup Song: Ring Christmas Bells - . Flight: Skylab 2 . "Ring Christmas Bells".

1973 December 25 - . 08:08 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere/Chemical release/Plasma mission - . Nation: Russia. Apogee: 190 km (110 mi).

1973 December 25 - . 11:17 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 2-08 - . Payload: Molniya-2. Mass: 1,600 kg (3,500 lb). Nation: Russia. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft Bus: KAUR-2. Spacecraft: Molniya-2. Decay Date: 1984-11-24 . USAF Sat Cat: 7000 . COSPAR: 1973-106A. Apogee: 39,934 km (24,813 mi). Perigee: 434 km (269 mi). Inclination: 62.9000 deg. Period: 718.00 min.

    Continued operation of the long-range telephone and telegraph radio-communication system within the Soviet Union and transmission of USSR central television programmes to stations in the Orbita and participating international networks (international cooperation scheme).


1973 December 25 - . 16:00 GMT - .
  • EVA Skylab 4-2 - . Crew: Carr, Pogue. EVA Duration: 0.29 days. Nation: USA. Related Persons: Carr, Pogue. Program: Skylab. Class: Manned. Type: Manned space station. Flight: Skylab 4. Spacecraft Bus: Skylab. Spacecraft: Skylab. Photographed Comet Kohoutek and replaced solar camera film cartridges..

1973 December 26 - . Launch Site: Baikonur. Launch Complex: Baikonur LC101. LV Family: R-36M. Launch Vehicle: R-36M 15A14.
  • Joint flight trials launch - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 26 - . 16:30 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Oreol 2 - . Payload: DS-U2-GKA s/n 2. Mass: 550 kg (1,210 lb). Nation: France. Agency: MO. Program: Aureole. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: DS-U2-GKA. Spacecraft: DS-U2-GKA. Completed Operations Date: 1974-04-30 . USAF Sat Cat: 7003 . COSPAR: 1973-107A. Apogee: 1,441 km (895 mi). Perigee: 387 km (240 mi). Inclination: 74.0000 deg. Period: 103.30 min. Continued investigations in the earth's upper atmosphere at high latitudes and study of the nature of polar aurorae begun on board the Oreol satellite in 1971..

1973 December 26 - .
1973 December 27 - . Launch Site: Baikonur. Launch Complex: Baikonur LC173. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100.
  • State trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 27 - . 20:19 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/19. Launch Pad: LC90/pad?. LV Family: R-36. Launch Vehicle: Tsiklon-2.
  • Cosmos 626 - . Mass: 3,800 kg (8,300 lb). Nation: Russia. Agency: MO. Program: RORSAT. Class: Surveillance. Type: Military naval surveillance radar satellite. Spacecraft Bus: Kosmoplan. Spacecraft: US-A. Decay Date: 1974-03-22 . USAF Sat Cat: 7115 . COSPAR: 1973-108D. Apogee: 982 km (610 mi). Perigee: 907 km (563 mi). Inclination: 65.4000 deg. Period: 103.90 min. Ocean surveillance; nuclear powered. First test of modernised design by KB Arsenal..

1973 December 28 - . Launch Site: Baikonur. LV Family: UR-100N. Launch Vehicle: UR-100N.
  • Mod 1 state trials missile test - . Nation: Russia. Agency: RVSN. Apogee: 1,000 km (600 mi).

1973 December 29 - .
  • Skylab 2 - Wakeup Song: Joy to the World - . Flight: Skylab 2 . "Joy to the World" by Three Dog Night CAPCOM: Bob Crippen.

1973 December 29 - . 04:12 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/2. LV Family: R-14. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 627 - . Mass: 550 kg (1,210 lb). Nation: Russia. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft Bus: KAUR-1. Spacecraft: Tsiklon satellite. USAF Sat Cat: 7008 . COSPAR: 1973-109A. Apogee: 1,014 km (630 mi). Perigee: 967 km (600 mi). Inclination: 83.0000 deg. Period: 104.90 min. Military navigation satellite..

1973 December 29 - . 17:00 GMT - .
1973 December 30 - .
  • Death of Konstantin Andreyevich Vershinin - . Nation: Russia. Related Persons: Vershinin. Russian officer. Commander of Air Force 1957-1969..

1973 December 30 - .
  • Skylab 2 - Wakeup Song: On Top of the World - . Flight: Skylab 2 . "On Top of the World" by"The Carpenters" CAPCOM: Bob Crippen.

1973 December 31 - .
  • Skylab 2 - Wakeup Song: Come Back My Love - . Flight: Skylab 2 . "Come Back My Love" by Brigitte Bardot.


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