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Information about Jumpseat (satellite)

Jumpseat, also known as AFP-711[1] is reportedly a code name for a class of SIGINT reconnaissance satellites operated by the National Reconnaissance Office for the United States Air Force in the 1970s and 1980s. The program is classified, and much of the information in the open is speculative.

It is believed that 6 Jumpseat satellites were successfully launched from Vandenberg Air Force Base on Titan IIIB launch vehicles with Agena D boosters between 21 March 1971 and 31 July 1983.

The 700-kg Jumpseat satellites were manufactured by Hughes Aircraft and were inserted into highly elliptical Molniya orbits with an inclination of 63 degrees and orbital periods of close to 12 hours. These were in similar orbits to the Satellite Data System relay satellites.

The successors to the Jumpseat series are the Trumpet satellites.

Launches

  • Jumpseat 1 launched 21 March 1971 (OPS 4788) (COSPAR 1971-021A)
  • (failed Jumpseat launch) 16 February 1972 (OPS 1844) (COSPAR 1972-F01)(failed to make orbit)
  • Jumpseat 2 launched 21 August 1973 (OPS 7724) (COSPAR 1973-056A)
  • Jumpseat 3 launched 10 March 1975 (OPS 2439) (COSPAR 1975-017A)
  • Jumpseat 4 launched 25 February 1978 (OPS 6031) (COSPAR 1978-021A)
  • Jumpseat 5 launched 13 December 1980 (OPS 5805) (1980-100A)
  • Jumpseat 6 launched 31 July 1983 (OPS 7304) (COSPAR 1983-078A)

External links

References

Richelson, Jeffrey T. ed. U.S. Military Uses of Space, 1945-1991 Vol 1, Guide. National Security Archive. 1991.
For other uses, see Sigint (disambiguation).


SIGINT stands for SIGnals INTelligence, which is a intelligence-gathering by interception of signals, whether between people (i.e.
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spy satellite (officially referred to as a reconnaissance satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications. The first generation type (i.e.
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The National Reconnaissance Office (NRO), located in Chantilly, Virginia, is one of the 16 intelligence agencies in the U.S. It designs, builds and operates the reconnaissance satellites of the United States government.
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United States Air Force (USAF) is the aerial warfare branch of the United States armed forces and one of the seven uniformed services. Previously part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947.
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Vandenberg Air Force Base (IATA: VBG, ICAO: KVBG, FAA LID: VBG) is a United States military installation with a spaceport, in Santa Barbara County, California, United States. As of the 2000 census, the base population was 6,151.
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The Titan IIIC was a space booster used by the United States Air Force. It was launched from Cape Canaveral Air Force Station, FL., and Vandenberg Air Force Base, CA. It was planned to be used as a launch vehicle in the cancelled Dyna-Soar and Manned Orbiting Laboratory programs.
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Agena (designated RM-81 by the USAF) was a rocket upper stage developed by Lockheed for the ill-fated WS-117L US reconnaissance satellite program. It lived on to see extensive use as the upper stage/spacecraft for the Corona spy satellite program and as an upper stage on the Thor,
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March 21 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.

In astrology, March 21
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19th century - 20th century - 21st century
1940s  1950s  1960s  - 1970s -  1980s  1990s  2000s
1968 1969 1970 - 1971 - 1972 1973 1974

Year 1971 (MCMLXXI
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July 31 is the 1st day of the year (2nd in leap years) in the Gregorian calendar. There are 0 days remaining.

Events


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19th century - 20th century - 21st century
1950s  1960s  1970s  - 1980s -  1990s  2000s  2010s
1980 1981 1982 - 1983 - 1984 1985 1986

Year 1983 (MCMLXXXIII
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Hughes Aircraft Company was a major aerospace and defense company founded by Howard Hughes. The group was based near Ballona Creek, in Culver City, California, USA, on the Pacific Coast.

Hughes Aircraft was acquired by General Motors in 1985.
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A Molniya orbit is a type of highly elliptical orbit with an inclination of 63.4 degrees and an orbital period of about 12 hours. Molniya orbits are named after a series of Soviet/Russian Molniya
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The Satellite Data System (SDS) is a system of United States military communications satellites. At least two generations have been used: SDS-1 from July 1976 to November 1995, and SDS-2 from 1989 to the present.
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TRUMPET, called Advanced Jumpseat by some observers, is reportedly a codename for a series of ELINT reconnaissance satellites launched by the United States during the 1990s to replace the Jumpseat (satellite) satellites.
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Jonathan's Space Report is a newsletter about the space age. It is written by Jonathan McDowell, a Harvard-Smithsonian Center for Astrophysics astrophysicist. It is updated as Dr. McDowell's schedule permits, but he tries to maintain two issues each month.
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