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USA 81



USA 81 was a US Air Force signals intelligence satellite launched from Vandenberg AFB aboard a Titan 2 rocket. It probably performed some kind of imaging also. Onboard propulsion boosted the spacecraft to an 800 km operating orbit.

Alternate Names

  • 21949
  • USA81

Facts in Brief

Launch Date: 1992-04-25
Launch Vehicle: Titan II
Launch Site: Vandenberg AFB, United States
Mass: 1700 kg

Funding Agency

  • Department of Defense-Department of the Air Force (United States)


  • Surveillance and Other Military

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office

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