This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com

astronautix.com Jumpseat


Class: ELINT. Nation: USA. Agency: U.S. Air Force.

Jumpseat signals intelligence satellites are launched by Titan 3's into Molniya-type orbits. These orbits are very similar to those of SDS classified communications satellites, and identification of a launch in either series as SDS or Jumpseat may differ from analyst to analyst.


Specification

Total Mass: 700 kg.


Jumpseat Chronology


21 March 1971 Jumpseat 1 Launch Site: Vandenberg . Launch Vehicle: Titan 3B. Mass: 700 kg. Perigee: 390 km. Apogee: 33,800 km. Inclination: 63.2 deg.
16 February 1972 Jumpseat 2 Launch Site: Vandenberg . Launch Vehicle: Titan 3B. FAILURE: Failure.
21 August 1973 Jumpseat 3 Launch Site: Vandenberg . Launch Vehicle: Titan 3B. Mass: 700 kg. Perigee: 460 km. Apogee: 39,296 km. Inclination: 63.3 deg.
10 March 1975 Jumpseat 4 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 295 km. Apogee: 39,337 km. Inclination: 63.5 deg.
25 February 1978 Jumpseat 5 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 311 km. Apogee: 39,377 km. Inclination: 63.2 deg.
24 April 1981 Jumpseat 6 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. FAILURE: Partial Failure. Mass: 700 kg. Perigee: 188 km. Apogee: 708 km. Inclination: 62.7 deg.

SDS 4 not deployed.


31 July 1983 Jumpseat 7 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 1,028 km. Apogee: 39,321 km. Inclination: 63.4 deg.

Bibliography:



Back to Index
Last update 12 March 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .