EORSAT

This page no longer updated from 31 October 2001.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

EORSAT

Program: EORSAT. Objective: ELINT. Type: Naval reconnaisance. Overview: Naval forces monitoring. Determines position of enemy naval forces through detection and triangulation of their electromagnetic emissions (radio, radar, etc). Major Events: .

24 December 1974 Cosmos 699 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring; exploded 4/17/75.
29 October 1975 Cosmos 777 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring; exploded 1/76.
24 August 1977 Cosmos 937 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
18 April 1979 Cosmos 1094 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
25 April 1979 Cosmos 1096 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
14 March 1980 Cosmos 1167 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
04 November 1980 Cosmos 1220 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
21 March 1981 Cosmos 1260 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
04 August 1981 Cosmos 1286 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
15 September 1981 Cosmos 1306 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring; replaced Cosmos 1260.
11 February 1982 Cosmos 1337 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
29 April 1982 Cosmos 1355 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
04 September 1982 Cosmos 1405 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
07 May 1983 Cosmos 1461 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
29 October 1983 Cosmos 1507 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
30 May 1984 Cosmos 1567 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
08 August 1984 Cosmos 1588 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
23 January 1985 Cosmos 1625 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
19 April 1985 Cosmos 1646 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean monitoring.
19 September 1985 Cosmos 1682 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
27 February 1986 Cosmos 1735 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
25 March 1986 Cosmos 1737 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
04 August 1986 Cosmos 1769 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
08 April 1987 Cosmos 1834 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
11 October 1987 Cosmos 1890 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
28 May 1988 Cosmos 1949 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
18 November 1988 Cosmos 1979 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
24 July 1989 Cosmos 2033 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
27 September 1989 Cosmos 2046 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
25 November 1989 Cosmos 2051 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
14 March 1990 Cosmos 2060 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
23 August 1990 Cosmos 2096 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
14 November 1990 Cosmos 2103 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
04 December 1990 Cosmos 2107 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
18 January 1991 Cosmos 2122 Spacecraft: US-P. Mass: 3,000 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Ocean surveillance.
30 March 1993 Cosmos 2238 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
First launch of new EORSAT, first of at 120 degree intervals on the same orbit with a 0 degree ascending node. Ocean surveillance.
28 April 1993 Cosmos 2244 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Second launch of new EORSAT, second of three stationed at 120 degree intervals on the same orbit with a 0 degree ascending node.
07 July 1993 Cosmos 2258 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Third launch of new EORSAT, final of three stationed at 120 degree intervals on the same orbit with a 0 degree ascending node. Ocean surveillance.
17 September 1993 Cosmos 2264 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
EORSAT, first of three to be stationed at 120 degree intervals on the same orbit with a 215 degree ascending node. However cutbacks in program resulted in the constellation not being completed. Ocean surveillance.
02 November 1994 Cosmos 2293 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
Second launch of new EORSAT, second of three to be stationed at 120 degree intervals on the same orbit with a 215 degree ascending node. However cutbacks in program resulted in the constellation not being completed. Ocean surveillance.
08 June 1995 Cosmos 2313 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
EORSAT, first of three to be stationed at 120 degree intervals on the same orbit with a 143 degree ascending node. However cutbacks in program resulted in the constellation not being completed. Ocean surveillance.
20 December 1995 Cosmos 2326 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
EORSAT, placed in 215 degree ascending node orbital slot. Ocean surveillance; also performed astrophysics research.
11 December 1996 Cosmos 2335 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
EORSAT, second of three to be stationed at 120 degree intervals on the same orbit with a 143 degree ascending node. However cutbacks in program resulted in the constellation not being completed. Still in operation as of December 1997.
15 December 1997 Cosmos 2347 Spacecraft: US-PM. Mass: 3,150 kg. Launch Site: Baikonur . Launch Vehicle: Tsyklon 2. More details
EORSAT, in the 217 degree ascending node slot. Still in operation as of December 1997.

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Last update 12 March 2001.
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© Mark Wade, 2001 .