Encyclopedia Astronautica
Scout B



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Scout B1
Scout B1 - COSPAR 1971-071
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Scout
Credit: © Mark Wade
American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 2B + 1 x Castor 2 + 1 x Antares 2 + 1 x FW4S

LEO Payload: 143 kg (315 lb) to a 185 km orbit. Failures: 4. First Fail Date: 1967-01-31. Last Fail Date: 1969-10-01 in 1985 dollars. Flyaway Unit Cost $: 8.660 million.

Stage Data - Scout B

  • Stage 1. 1 x Algol 2. Gross Mass: 11,600 kg (25,500 lb). Empty Mass: 1,650 kg (3,630 lb). Thrust (vac): 564.245 kN (126,847 lbf). Isp: 255 sec. Burn time: 47 sec. Isp(sl): 232 sec. Diameter: 1.01 m (3.31 ft). Span: 1.01 m (3.31 ft). Length: 9.09 m (29.82 ft). Propellants: Solid. No Engines: 1. Engine: Algol 2. Status: Out of Production.
  • Stage 2. 1 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 3. 1 x Antares 2. Gross Mass: 1,400 kg (3,000 lb). Empty Mass: 300 kg (660 lb). Thrust (vac): 93.094 kN (20,928 lbf). Isp: 293 sec. Burn time: 36 sec. Isp(sl): 233 sec. Diameter: 0.78 m (2.55 ft). Span: 0.78 m (2.55 ft). Length: 2.90 m (9.50 ft). Propellants: Solid. No Engines: 1. Engine: X-259. Status: Out of Production.
  • Stage 4. 1 x Altair 3. Gross Mass: 301 kg (663 lb). Empty Mass: 25 kg (55 lb). Thrust (vac): 27.400 kN (6,160 lbf). Isp: 280 sec. Burn time: 27 sec. Isp(sl): 255 sec. Diameter: 0.64 m (2.09 ft). Span: 0.64 m (2.09 ft). Length: 2.53 m (8.30 ft). Propellants: Solid. No Engines: 1. Engine: FW-4S, TEM640. Status: Out of Production.

Gross mass: 17,900 kg (39,400 lb).
Payload: 143 kg (315 lb).
Height: 25.00 m (82.00 ft).
Diameter: 1.01 m (3.31 ft).
Thrust: 513.40 kN (115,417 lbf).
Apogee: 185 km (114 mi).
First Launch: 1965.08.10.
Last Launch: 1971.11.15.
Number: 25 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Injun American earth magnetosphere satellite. 5 launches, 1961.06.29 (Injun 1) to 1968.08.08 (Explorer 40). Radiation decay data satellite. May also have been a cover for some NRL ELINT satellites. More...
  • SECOR American earth geodetic satellite. 13 launches, 1962.01.24 (Secor) to 1969.04.14 (SECOR 13). More...
  • Ariel American earth magnetosphere satellite. 6 launches, 1962.04.26 (Ariel 1) to 1979.06.02 (Ariel 6). Ionospheric studies; returned X-ray, ionospheric, cosmic ray data. More...
  • ADE American earth atmosphere satellite. 3 launches, 1963.12.19 (Explorer 19) to 1968.08.08 (Explorer 39). 12 foot diameter. balloon; identical to Explorer 9; atmospheric density studies. More...
  • San Marco Italian earth atmosphere satellite. 5 launches, 1964.12.15 (San Marco 1) to 1988.03.25 (San Marco D/L). Atmospheric density studies. More...
  • OV3 American earth magnetosphere satellite. 6 launches, 1966.04.22 (OV3-01) to 1967.12.05 (OV3-06). The OV3 GUS General Utility Satellite were built for the Air Force as part of the OV3 satellite series. More...
  • ESRO European technology satellite. 5 launches, 1967.05.30 (ESRO 2A) to 1972.11.22 (ESRO 4). The ESRO series were small Scout-launched probes of near-earth space. More...
  • Solrad American solar satellite. 4 launches, 1968.03.05 (Explorer 37) to 1976.03.15 (Solrad 11B). SOLRAD was Satellite Techniques' first major project and NRL's first post-Vanguard satellite. More...
  • RM American earth micrometeoroid satellite. 2 launches, 1968.08.16 (RM-18) and 1970.11.09 (RM-1; RMS). Spacecraft engaged in research and exploration of the upper atmosphere or outer space. More...
  • AZUR German earth magnetosphere satellite. One launch, 1969.11.08. German Research Satellite A; examined Van Allen belts, solar particles, aurora. More...
  • OFO American biology satellite. One launch, 1970.11.09. The Frog Otolith Experiment Package (FOEP) contained all apparatus necessary to assure survival of two frogs. More...
  • SAS Italian solar satellite. 3 launches, 1970.12.12 (Explorer 42) to 1975.05.07 (Explorer 53). More...
  • Eole French earth weather satellite. One launch, 1971.08.12. Experimental weather satellite; received meteorological data from balloon network. More...
  • SSS American earth magnetosphere satellite. One launch, 1971.11.15, Explorer 45. Studies magnetosphere, energetic particles. More...
  • TIP American navigation satellite. 6 launches, 1972.09.02 (Triad 1) to 1988.06.16 (Nova 2). More...
  • P 76 American communications technology satellite. One launch, 1976.05.22. Communications propagation experiments. More...

Associated Engines
  • Algol 2 CSD solid rocket engine. 564.2 kN. Isp=255s. Used on Scout A, Scout B, Scout X-3, Scout X-4; proposed as strap-on for Titan 3BAS2. First flight 1962. More...
  • FW-4S TEM640 Thiokol solid rocket engine. 27.4 kN. Isp=280s. Used on Advanced Scout, Scout B, Scout D, Scout F, Scout G. First flight 1965. More...
  • TX-354-3 Thiokol solid rocket engine. 258.9 kN. Used in Scout A; Delta E; H-1-0; Castor 2. License built in Japan for H-1. Isp=262s. First flight 1960. More...
  • X-259 Thiokol solid rocket engine. 93.1 kN. Isp=293s. Used on Scout A, Scout B, Scout D, Scout F, Scout X-2, Scout X-3, Scout X-4. First flight 1962. More...

See also
  • Scout Solid-fuel, light payload, lower-cost launch vehicle developed by the Air Force and NASA in the late 1950's and used in a variety of configurations over thirty years. Launched from Cape Canaveral, Vandenberg, Wallops Island, and from Italy's equatorial San Marco platform off Kenya. Italy studied but did not develop subsequent upgraded versions. More...

Associated Manufacturers and Agencies
  • Vought American manufacturer of rockets and spacecraft. Vought, USA. More...

Associated Programs
  • Explorer Series of satellites launched by Jet Propulsion Laboratory for the exploration of the space environment (micrometeoroids, charged particles, radiation, etc) from both earth orbital and heliocentric orbital locations. More...

Associated Launch Sites
  • Wallops Island Small NASA launch site for sounding rocket launches and occasional Scout launches to orbit. Air launches are conducted from the Drop Zone Wallops Island, 37.00 N 72.0 W. With the last orbital launch in 1985 and the decline in sounding rocket launches, Wallops fell into near-disuse as a launch center. Its fortunes revised with the establishment of Mid-Atlantic Regional Spaceport in 2005 and orbital launches resumed in 2010. More...
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • San Marco In 1962 NASA signed an agreement with the Centro Ricerche Aerospaziali at the University of Rome creating the San Marco program. The purpose of the program was to place an Italian satellite in orbit and to create an Italian equatorial launch site for the Scout rocket. Permission was obtained from Kenya to emplace two modified oil platforms off their coast, on the equator. The Santa Rita platform would serve as a launch control center and would also be used for launch of sounding rockets. The San Marco platform would be dedicated to launch of Scout rockets to orbit. More...
  • Vandenberg SLC5 Scout launch complex. Dedicated Scout launch pad, used during the life of that vehicle from 1962 to 1994. More...

Associated Stages
  • Algol 2B Solid rocket stage. 400.00 kN (89,924 lbf) thrust. Mass 10,700 kg (23,589 lb). More...
  • Altair 3 Solid propellant rocket stage. Loaded/empty mass 301/25 kg. Thrust 27.40 kN. Vacuum specific impulse 280 seconds. More...
  • Antares 2 Solid propellant rocket stage. Loaded/empty mass 1,400/300 kg. Thrust 93.09 kN. Vacuum specific impulse 293 seconds. More...
  • Castor 2 Solid propellant rocket stage. Loaded/empty mass 4,424/695 kg. Thrust 258.92 kN. Vacuum specific impulse 262 seconds. More...

Scout B Chronology


1965 August 10 - . 17:54 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S131R.
  • SECOR 5 (EGRS 5) - . Payload: SEV / FW4S. Mass: 24 kg (52 lb). Nation: USA. Agency: NASA Langley. Class: Earth. Type: Geodetic satellite. Spacecraft: SECOR. USAF Sat Cat: 1506 . COSPAR: 1965-063A. Apogee: 2,419 km (1,503 mi). Perigee: 1,134 km (704 mi). Inclination: 69.2000 deg. Period: 122.20 min. Summary: Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • Secor 5 - . Payload: Secor 5. Nation: USA. Agency: USA. Spacecraft: SECOR. USAF Sat Cat: 1502 . COSPAR: 1965-063B. Apogee: 2,424 km (1,506 mi). Perigee: 1,136 km (705 mi). Inclination: 69.2000 deg. Period: 122.22 min.

1966 April 22 - . 09:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S145C.
  • OV3-01 - . Mass: 69 kg (152 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV3. USAF Sat Cat: 2150 . COSPAR: 1966-034A. Apogee: 3,585 km (2,227 mi). Perigee: 341 km (211 mi). Inclination: 82.4000 deg. Period: 126.40 min. Summary: Radiation data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

1966 June 10 - . 04:15 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S147C.
  • OV3-04 - . Mass: 79 kg (174 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV3. USAF Sat Cat: 2201 . COSPAR: 1966-052A. Apogee: 4,704 km (2,922 mi). Perigee: 643 km (399 mi). Inclination: 40.9000 deg. Period: 142.90 min. Summary: Radiation measurements. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1966 August 4 - . 10:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S148C.
  • OV3-03 - . Mass: 75 kg (165 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV3. USAF Sat Cat: 2389 . COSPAR: 1966-070A. Apogee: 3,141 km (1,951 mi). Perigee: 349 km (216 mi). Inclination: 81.4000 deg. Period: 121.40 min. Summary: Radiation measurements. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1966 October 28 - . 11:56 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S150C.
  • OV3-02 - . Mass: 82 kg (180 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV3. Decay Date: 1971-09-29 . USAF Sat Cat: 2517 . COSPAR: 1966-097A. Apogee: 1,599 km (993 mi). Perigee: 319 km (198 mi). Inclination: 81.9000 deg. Period: 104.20 min. Summary: Radiation data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1967 January 31 - . 12:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S151C. FAILURE: Failure.. Failed Stage: U.
  • OV3-05 - . Payload: OV3-05. Nation: USA. Agency: AFSC. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV3. Decay Date: 1967-01-21 . COSPAR: F670131A.

1967 April 26 - . 10:06 GMT - . Launch Site: San Marco. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S153C.
  • San Marco 2 - . Payload: San Marco B. Mass: 129 kg (284 lb). Nation: Italy. Agency: CRS. Class: Earth. Type: Atmosphere satellite. Spacecraft: San Marco. Decay Date: 1967-10-14 . USAF Sat Cat: 2761 . COSPAR: 1967-038A. Apogee: 741 km (460 mi). Perigee: 219 km (136 mi). Inclination: 2.9000 deg. Period: 94.20 min. Summary: Atmospheric density data. Scientific satellite launched from a mobile range off Formosa Bay (Kenya). .

1967 May 30 - . 02:06 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S152C. FAILURE: Third stage failure.. Failed Stage: 3.
  • ESRO 2A - . Payload: Iris 1. Mass: 74 kg (163 lb). Nation: Europe. Agency: ESRO. Class: Technology. Type: Navigation technology satellite. Spacecraft: ESRO. Decay Date: 1967-05-29 . COSPAR: F670530A.

1967 October 19 - . 17:33 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S159C.
  • RAM C-1 Re-entry vehicle test - . Nation: USA. Agency: NASA. Apogee: 217 km (134 mi).

1967 December 5 - . 01:03 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S158C.
  • OV3-06 - . Payload: ATCOS 2. Mass: 95 kg (209 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV3. Decay Date: 1969-03-09 . USAF Sat Cat: 3057 . COSPAR: 1967-120A. Apogee: 443 km (275 mi). Perigee: 409 km (254 mi). Inclination: 90.0000 deg. Period: 93.00 min. Summary: Ionospheric studies. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1968 March 5 - . 18:28 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S160C. FAILURE: Partial Failure.. Failed Stage: 4.
  • Explorer 37 - . Payload: Solar Explorer B. Mass: 198 kg (436 lb). Nation: USA. Agency: NRL. Program: Explorer. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: Solrad. Decay Date: 1990-11-16 . USAF Sat Cat: 3141 . COSPAR: 1968-017A. Apogee: 433 km (269 mi). Perigee: 353 km (219 mi). Inclination: 59.3000 deg. Period: 92.40 min. Summary: Solar Explorer B; radiation data; off-nominal orbit..

1968 May 17 - . 02:06 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S161C.
  • ESRO 2B - . Payload: IRIS. Mass: 75 kg (165 lb). Nation: Europe. Agency: ESRO. Class: Technology. Type: Navigation technology satellite. Spacecraft: ESRO. Decay Date: 1971-05-08 . USAF Sat Cat: 3233 . COSPAR: 1968-041A. Apogee: 1,085 km (674 mi). Perigee: 334 km (207 mi). Inclination: 97.2000 deg. Period: 99.00 min.

1968 August 8 - . 20:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S165C.
  • Explorer 39 - . Payload: ADE C. Mass: 9.00 kg (19.80 lb). Nation: USA. Agency: NASA Langley. Program: Explorer. Class: Earth. Type: Atmosphere satellite. Spacecraft: ADE. Decay Date: 1981-06-22 . USAF Sat Cat: 3337 . COSPAR: 1968-066A. Apogee: 2,538 km (1,577 mi). Perigee: 670 km (410 mi). Inclination: 80.7000 deg. Period: 118.30 min. Summary: Air Density Explorer; atmospheric density and temperature data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • Explorer 40 - . Payload: Injun E. Mass: 70 kg (154 lb). Nation: USA. Agency: NASA Langley. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft: Injun. USAF Sat Cat: 3338 . COSPAR: 1968-066B. Apogee: 2,489 km (1,546 mi). Perigee: 679 km (421 mi). Inclination: 80.7000 deg. Period: 117.80 min. Summary: Injun Explorer; radiation data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1968 August 22 - . 15:16 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S168C.
  • RAM C-2 Re-entry vehicle test - . Nation: USA. Agency: NASA. Apogee: 227 km (141 mi).

1968 October 3 - . 20:49 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S167C.
  • ESRO 1A - . Payload: Aurorae. Mass: 81 kg (178 lb). Nation: Europe. Agency: ESRO. Class: Technology. Type: Navigation technology satellite. Spacecraft: ESRO. Decay Date: 1970-06-26 . USAF Sat Cat: 3459 . COSPAR: 1968-084A. Apogee: 1,538 km (955 mi). Perigee: 258 km (160 mi). Inclination: 93.8000 deg. Period: 103.00 min. Summary: Aurora, polar ionosphere investigations. .

1969 October 1 - . 22:29 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S172C. FAILURE: Partial Failure.. Failed Stage: 4.
  • ESRO 1B - . Payload: Boreas. Mass: 80 kg (176 lb). Nation: Europe. Agency: ESRO. Class: Technology. Type: Navigation technology satellite. Spacecraft: ESRO. Decay Date: 1969-11-23 . USAF Sat Cat: 4114 . COSPAR: 1969-083A. Apogee: 378 km (234 mi). Perigee: 298 km (185 mi). Inclination: 85.0000 deg. Period: 91.30 min. Ionospheric and auroral investigations; lower than planned orbit. Fourth satellite of ESRO. Also registered by the United States in A/AC.105/INF.220 as United States space object 1969-83A, with category B and orbital parameters 90.6 min, 280 x 339 km x 85.1 deg.

1969 November 8 - . 01:52 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S169C.
  • Azur - . Payload: GRS A. Mass: 71 kg (156 lb). Nation: Germany. Agency: DFVLR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: AZUR. USAF Sat Cat: 4221 . COSPAR: 1969-097A. Apogee: 2,127 km (1,321 mi). Perigee: 373 km (231 mi). Inclination: 102.7000 deg. Period: 110.50 min. Summary: German Research Satellite A; examined Van Allen belts, solar particles, aurora. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1970 September 30 - . 20:06 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S171C.
  • RAM C-3 re-entry vehicle test flight - . Nation: USA. Agency: NASA. Apogee: 269 km (167 mi).

1970 November 9 - . 06:00 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S174C.
  • OFO 1 - . Payload: OFO 1 / RM 1. Mass: 133 kg (293 lb). Nation: USA. Agency: NASA Ames. Class: Biology. Type: Biology satellite. Spacecraft: OFO. Decay Date: 1971-05-09 . USAF Sat Cat: 4690 . COSPAR: 1970-094A. Apogee: 518 km (321 mi). Perigee: 304 km (188 mi). Inclination: 37.4000 deg. Period: 92.60 min. Orbiting Frog Otolith. The satellite carrying the OFO-A experiment remained in orbit for almost seven days. Recovery of the spacecraft was not planned. The payload was the Frog Otolith Experiment Package (FOEP). The objective of the experiment was to investigate the effect of microgravity on the otolith, a sensory organ that responds to changes in an animal's orientation within the Earth's gravitational field. Two bullfrogs (Rana catesbeiana) were used as experimental subjects in the flight experiment. Additional Details: here....
  • RM-1; RMS - . Payload: RM/FW4S. Mass: 46 kg (101 lb). Nation: USA. Agency: NASA Houston. Class: Earth. Type: Micrometeoroid satellite. Spacecraft: RM. Decay Date: 1971-02-07 . USAF Sat Cat: 4692 . COSPAR: 1970-094B. Apogee: 526 km (326 mi). Perigee: 303 km (188 mi). Inclination: 37.4000 deg. Period: 92.70 min. Summary: Radiation Meteoroid. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1970 December 12 - . 10:53 GMT - . Launch Site: San Marco. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S175C.
  • Explorer 42 - . Payload: SAS A. Mass: 143 kg (315 lb). Nation: Italy. Agency: NASA Greenbelt. Program: Explorer. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: SAS. Decay Date: 1979-04-05 . USAF Sat Cat: 4797 . COSPAR: 1970-107A. Apogee: 570 km (350 mi). Perigee: 521 km (323 mi). Inclination: 3.0000 deg. Period: 95.50 min. Summary: Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1971 April 24 - . 07:32 GMT - . Launch Site: San Marco. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S173C.
  • San Marco 3 - . Payload: San Marco C. Mass: 164 kg (361 lb). Nation: Italy. Agency: CRS. Class: Earth. Type: Atmosphere satellite. Spacecraft: San Marco. Decay Date: 1971-11-29 . USAF Sat Cat: 5176 . COSPAR: 1971-036A. Apogee: 707 km (439 mi). Perigee: 222 km (137 mi). Inclination: 3.2000 deg. Period: 93.80 min. Summary: Atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1971 June 20 - . 19:31 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S144CR.
  • PAET re-entry vehicle test flight - . Nation: USA. Agency: NASA. Apogee: 377 km (234 mi).

1971 July 8 - . 22:58 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S177C.
  • Explorer 44 - . Payload: Solar Explorer C. Mass: 118 kg (260 lb). Nation: USA. Agency: NRL. Program: Explorer. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: Solrad. Decay Date: 1979-12-15 . USAF Sat Cat: 5317 . COSPAR: 1971-058A. Apogee: 632 km (392 mi). Perigee: 433 km (269 mi). Inclination: 51.1000 deg. Period: 95.20 min. Summary: Solar radition data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1971 September 20 - . 23:31 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3A. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S166C.
  • BIC Plasma / barium release mission - . Nation: USA. Agency: NASA. Apogee: 31,479 km (19,560 mi).

1971 November 15 - . 05:52 GMT - . Launch Site: San Marco. LV Family: Scout. Launch Vehicle: Scout B. LV Configuration: Scout B S163CR.
  • Explorer 45 - . Payload: SSS A. Mass: 52 kg (114 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft: SSS. Decay Date: 1992-01-10 . USAF Sat Cat: 5598 . COSPAR: 1971-096A. Apogee: 18,149 km (11,277 mi). Perigee: 272 km (169 mi). Inclination: 3.2000 deg. Period: 322.80 min. Summary: Studies magnetosphere, energetic particles. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

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