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Thor Delta N
Part of Thor Family
Delta N6 no. 81
Delta N6 no. 81
Delta N6 no. 81 - COSPAR 1970-106
American orbital launch vehicle. Long Tank Thor augmented with 3 Castor 2 boosters and Delta E upper stage.

AKA: Delta N;Long Tank Thor. Status: Retired 1972. First Launch: 1968-08-16. Last Launch: 1972-03-12. Number: 6 . Thrust: 1,590.00 kN (357,440 lbf). Gross mass: 90,000 kg (198,000 lb). Height: 33.00 m (108.00 ft). Diameter: 2.44 m (8.00 ft). Apogee: 1,500 km (900 mi).

Flyaway Unit Cost 1985$: 18.820 million.

Stage Data - Delta N

  • Stage 0. 6 x Castor 2. Gross Mass: 4,424 kg (9,753 lb). Empty Mass: 695 kg (1,532 lb). Thrust (vac): 258.915 kN (58,206 lbf). Isp: 262 sec. Burn time: 37 sec. Isp(sl): 232 sec. Diameter: 0.79 m (2.59 ft). Span: 0.79 m (2.59 ft). Length: 6.04 m (19.81 ft). Propellants: Solid. No Engines: 1. Engine: TX-354-3. Status: In Production.
  • Stage 1. 1 x Delta Thor LT. Gross Mass: 70,354 kg (155,104 lb). Empty Mass: 3,715 kg (8,190 lb). Thrust (vac): 866.710 kN (194,844 lbf). Isp: 290 sec. Burn time: 215 sec. Isp(sl): 256 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 21.43 m (70.30 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: MB-3-3. Other designations: Long Tank Thor. Status: Out of Production.
  • Stage 2. 1 x Delta E. Gross Mass: 6,009 kg (13,247 lb). Empty Mass: 785 kg (1,730 lb). Thrust (vac): 35.098 kN (7,890 lbf). Isp: 278 sec. Burn time: 400 sec. Isp(sl): 0.0000 sec. Diameter: 1.40 m (4.50 ft). Span: 1.40 m (4.50 ft). Length: 6.28 m (20.60 ft). Propellants: Nitric acid/UDMH. No Engines: 1. Engine: AJ10-118E. Status: Out of Production.



Family: orbital launch vehicle. Country: USA. Engines: AJ10-118E, MB-3-3. Spacecraft: TIROS, Oscar, OSO, TOS, Biosatellite, PAC, TETR, ITOS, TD-1A. Launch Sites: Cape Canaveral, Vandenberg, Cape Canaveral LC17A, Vandenberg SLC2E. Stages: Delta Thor LT, Delta E, Castor 2. Agency: Douglas.

1968 August 16 - . 11:24 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Thor. Launch Vehicle: Thor Delta N.
  • ESSA 7 - . Payload: TOS E. Mass: 145 kg (319 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 3345 . COSPAR: 1968-069A. Apogee: 1,473 km (915 mi). Perigee: 1,431 km (889 mi). Inclination: 101.9000 deg. Period: 114.90 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1968 December 15 - . 17:21 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Thor. Launch Vehicle: Thor Delta N.
  • ESSA 8 - . Payload: TOS F. Mass: 132 kg (291 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 3615 . COSPAR: 1968-114A. Apogee: 1,464 km (909 mi). Perigee: 1,414 km (878 mi). Inclination: 102.0000 deg. Period: 114.60 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1969 June 29 - . 03:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta N.
  • Biosatellite 3 - . Payload: Biosat 3. Mass: 695 kg (1,532 lb). Nation: USA. Agency: NASA Ames. Class: Biology. Type: Biology satellite. Spacecraft: Biosatellite. Decay Date: 1970-01-20 . USAF Sat Cat: 4000 . COSPAR: 1969-056A. Apogee: 374 km (232 mi). Perigee: 363 km (225 mi). Inclination: 33.5000 deg. Period: 92.00 min.

    Biological capsule reentered 7/7/69. The intent had been to fly a 6 kg male pig-tailed monkey (Macaca nemestrina) named Bonnie in Earth-orbit for 30 days. However, after only 8.8 days in orbit, the mission was terminated because of the subject's deteriorating health. High development costs were a strong incentive for maximising the scientific return from the mission. Because of this, the scientific goals had become exceedingly ambitious over time, and a great many measurements were conducted on the single research subject flown. Although the mission was highly successful from a technical standpoint, the science results were apparently compromised. Additional Details: here....


1969 August 9 - . 07:52 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta N.
  • OSO 6 - . Payload: OSO G. Mass: 290 kg (630 lb). Nation: USA. Agency: NASA Greenbelt. Class: Astronomy. Type: Solar satellite. Spacecraft: OSO. Decay Date: 1981-03-07 . USAF Sat Cat: 4065 . COSPAR: 1969-068A. Apogee: 554 km (344 mi). Perigee: 489 km (303 mi). Inclination: 32.9000 deg. Period: 95.10 min. Orbiting Solar Observatory; solar physics experiments. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • PAC 1 - . Mass: 120 kg (260 lb). Nation: USA. Agency: NASA Greenbelt. Class: Technology. Type: Navigation technology satellite. Spacecraft: PAC. Decay Date: 1977-04-28 . USAF Sat Cat: 4066 . COSPAR: 1969-068B. Apogee: 552 km (342 mi). Perigee: 486 km (301 mi). Inclination: 32.9000 deg. Period: 95.00 min. Package Attitude Control; semi-active gravity gradient stabilization tests. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1971 September 29 - . 09:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta N.
  • OSO 7 - . Payload: OSO H. Mass: 635 kg (1,399 lb). Nation: USA. Agency: NASA Greenbelt. Class: Astronomy. Type: Solar satellite. Spacecraft: OSO. Decay Date: 1974-07-09 . USAF Sat Cat: 5491 . COSPAR: 1971-083A. Apogee: 572 km (355 mi). Perigee: 326 km (202 mi). Inclination: 33.1000 deg. Period: 93.50 min. Orbiting Solar Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • TETR 3 - . Payload: TETR D. Mass: 20 kg (44 lb). Nation: USA. Agency: NASA Greenbelt. Class: Technology. Type: Tracking network technology satellite. Spacecraft: TETR. Decay Date: 1978-09-19 . USAF Sat Cat: 5492 . COSPAR: 1971-083B. Apogee: 570 km (350 mi). Perigee: 403 km (250 mi). Inclination: 33.0000 deg. Period: 94.30 min. Test satellite for NASA's Manned Space Flight Network. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1972 March 12 - . 01:55 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Thor. Launch Vehicle: Thor Delta N.
  • TD-1A; Thor Delta 1A - . Payload: TD 1A. Mass: 472 kg (1,040 lb). Nation: Europe. Agency: ESRO. Class: Technology. Type: Navigation technology satellite. Spacecraft: TD-1A. Decay Date: 1980-01-09 . USAF Sat Cat: 5879 . COSPAR: 1972-014A. Apogee: 550 km (340 mi). Perigee: 523 km (324 mi). Inclination: 97.6000 deg. Period: 95.40 min. Sixth satellite of ESRO. Also registered as US object 1972-14A in A/AC.105/INF.255 with orbit 95.3 min, 525 x 548 km x 97.5 deg, category B. .


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