This page no longer updated from 31 October 2001.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

astronautix.com SDS


Class: Communications. Type: Military. Nation: USA. Agency: U.S. Air Force.

SDS satellites, put into Molniya-type orbits, provide data relay services for optical reconnaisance and other military spacecraft.


Specification

Total Mass: 700 kg.


SDS Chronology


02 June 1976 SDS no. 1 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 380 km. Apogee: 39,315 km. Inclination: 63.3 deg.
06 August 1976 SDS no. 2 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 380 km. Apogee: 39,315 km. Inclination: 63.3 deg.

Satellite Data Systems 2.


05 August 1978 SDS no. 3 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 315 km. Apogee: 39,053 km. Inclination: 62.5 deg.
13 December 1980 SDS no. 4 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 250 km. Apogee: 39,130 km. Inclination: 63.8 deg.
28 August 1984 USA 4 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 380 km. Apogee: 39,975 km. Inclination: 63.3 deg.

Satellite Data Systems 2.


06 February 1985 USA 9 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 400 km. Apogee: 39,775 km. Inclination: 63.0 deg.

Satellite Data Systems 2.


12 February 1987 USA 21 Launch Site: Vandenberg . Launch Vehicle: Titan 34B. Mass: 700 kg. Perigee: 610 km. Apogee: 39,750 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 .