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Class: Early Warning. Nation: Russia. Manufacturer: Lavochkin. Geosynchronous ballistic missile early warning satellite. Official designations unknown. SPRN = "Spetsializirovannim apparatom dlya obnaruzhenniya yadernix vzrivov" (Special apparatus for observation of nuclear forces). Infrared telescope similar to US IMEWS.
SpecificationTotal Mass: 2,154 kg.
SPRN Chronology
08 October 1975
Cosmos 775 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S86. Mass: 2,000 kg. Perigee: 35,721 km. Apogee: 35,812 km. Inclination: 13.6 deg. First launch of new geosynchronous ballistic missile early warning satellite. Exploded in orbit.
29 March 1984
Cosmos 1546 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S86. Mass: 2,000 kg. Perigee: 35,668 km. Apogee: 35,912 km. Inclination: 7.2 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 23 deg W.
21 February 1985
Cosmos 1629 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S86. Mass: 2,000 kg. Perigee: 35,738 km. Apogee: 35,773 km. Inclination: 6.5 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 335 deg E.
28 October 1987
Cosmos 1894 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,000 kg. Perigee: 35,776 km. Apogee: 35,802 km. Inclination: 4.1 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 335 deg E.
26 April 1988
Cosmos 1940 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,000 kg. Perigee: 35,571 km. Apogee: 35,779 km. Inclination: 3.5 deg. Stationed at 12 deg E; atmospheric, ocean studies. Investigation of the seas and oceans and the processes occurring in the earth's atmosphere.
14 February 1991
Cosmos 2133 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,150 kg. Perigee: 35,777 km. Apogee: 35,795 km. Inclination: 0.5 deg. Geosynchronous ballistic missile early warning satellite. Declared purpose: 'Investigation of outer space and of processes occurring in the Earth's atmosphere'.
13 September 1991
Cosmos 2155 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,150 kg. Perigee: 35,781 km. Apogee: 35,825 km. Inclination: 0.4 deg. Geosynchronous ballistic missile early warning satellite. Declared purpose: 'Relaying of telegraph and telephone information'.
10 September 1992
Cosmos 2209 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,200 kg. Perigee: 35,787 km. Apogee: 35,790 km. Inclination: 0.4 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 24 deg W. Investigation of outer space and of processes occurring in the Earth's atmosphere.
17 December 1992
Cosmos 2224 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,200 kg. Perigee: 35,710 km. Apogee: 35,865 km. Inclination: 1.6 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 12 deg E. Declared purpose: 'Investigation of outer space and of processes occurring in the Earth's atmosphere. Prognoz series'.
06 July 1994
Cosmos 2282 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,500 kg. Perigee: 35,754 km. Apogee: 35,817 km. Inclination: 1.9 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 24.06W
14 August 1997
Cosmos 2345 Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 2,500 kg. Perigee: 35,037 km. Apogee: 36,534 km. Inclination: 1.1 deg. Geosynchronous ballistic missile early warning satellite. Stationed at 26.0W
Bibliography:- 4 - McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. HTML when accessed: ftp://sao-ftp.harvard.edu/pub/jcm/space/news
- 107 - Novosti Kosmonavtiki, "Rossiya. V polyote 'Kosmos-2345'", 1997, Issue 17, page 31.
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Last update 12 March 2001.
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