Kosmos 1793

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Kosmos 1793
Mission type Early warning
COSPAR ID 1986-091A
SATCAT № 17134
Mission duration 4 years [1]
Spacecraft properties
Spacecraft type US-K [2]
Launch mass 1,900 kilograms (4,200 lb)[3]
Start of mission
Launch date 20 November 1986, 12:09 (1986-11-20UTC12:09Z) UTC
Rocket Molniya-M/2BL[2]
Launch site Plesetsk Cosmodrome[2][3]
End of mission
Decay date 15 May 2011 (2011-05-16)[4]
Orbital parameters
Reference system Geocentric
Regime Molniya [2]
Perigee 639 kilometres (397 mi)[4]
Apogee 39,717 kilometres (24,679 mi)[4]
Inclination 62.9 degrees[4]
Period 717.80 minutes[4]

Kosmos 1793 (Russian: Космос 1793 meaning Cosmos 1793) is a Soviet US-K missile early warning satellite which was launched in 1986 as part of the Soviet military's Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.[2]

Kosmos 1793 was launched from Site 16/2 at Plesetsk Cosmodrome in the Russian SSR.[5] A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 12:09 UTC on 20 November 1986.[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1986-091A.[3] The United States Space Command assigned it the Satellite Catalog Number 17134.[3]

It re-entered the Earth's atmosphere on 15 May 2011.[4]


  1. ^ Podvig, Pavel (2002). "History and the Current Status of the Russian Early-Warning System" (pdf). Science and Global Security 10: 21–60. doi:10.1080/08929880212328. ISSN 0892-9882. 
  2. ^ a b c d e "US-K (73D6)". Gunter's Space Page. 2012-03-08. Retrieved 2012-04-21. 
  3. ^ a b c d e "Cosmos 1793". National Space Science Data Centre. 2012-04-20. Retrieved 2012-04-25. 
  4. ^ a b c d e f 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. 

See also[edit]