Kosmos 2105

Kosmos 2105 (Russian: Космос 2105 meaning Cosmos 2105) is a Russian US-K missile early warning satellite which was launched in 1990 as part of the Russian Space Forces' Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.[2]

Kosmos 2105
Mission typeEarly warning
COSPAR ID1990-099A
SATCAT no.20941
Mission duration4 years [1]
Spacecraft properties
Spacecraft typeUS-K [2]
Launch mass1,900 kilograms (4,200 lb)[3]
Start of mission
Launch date20 November 1990, 02:33 (1990-11-20UTC02:33Z) UTC
RocketMolniya-M/2BL[2]
Launch sitePlesetsk Cosmodrome[2][3]
End of mission
Decay date21 January 2008 (2008-01-22)[4]
Orbital parameters
Reference systemGeocentric
RegimeMolniya [2]
Perigee altitude594 kilometres (369 mi)[4]
Apogee altitude39,751 kilometres (24,700 mi)[4]
Inclination63.2 degrees[4]
Period717.60 minutes[4]
 

Kosmos 2105 was launched from Site 16/2 at Plesetsk Cosmodrome in Russia.[5] A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 02:33 UTC on 20 November 1990.[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1990-099A.[3] The United States Space Command assigned it the Satellite Catalog Number 20941.[3]

It re-entered the Earth's atmosphere on 21 January 2008.[4]

See also

References

  1. Podvig, Pavel (2002). "History and the Current Status of the Russian Early-Warning System" (PDF). Science and Global Security. 10: 21–60. CiteSeerX 10.1.1.692.6127. doi:10.1080/08929880212328. ISSN 0892-9882. Archived from the original (PDF) on 2012-03-15.
  2. "US-K (73D6)". Gunter's Space Page. 2012-03-08. Retrieved 2012-04-21.
  3. "Cosmos 2105". National Space Science Data Centre. 2012-04-20. Retrieved 2012-04-25.
  4. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 30 April 2012.
  5. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 May 2012.
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