Kosmos 1124

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Kosmos 1124
Mission type Early warning
COSPAR ID 1979-077A
SATCAT № 11509
Mission duration 4 years [1]
Spacecraft properties
Spacecraft type US-K [2]
Launch mass 1,900 kilograms (4,200 lb)
Start of mission
Launch date 28 August 1979, 00:17 (1979-08-28UTC00:17Z) UTC
Rocket Molniya-M/2BL[2]
Launch site Plesetsk Cosmodrome[2][3]
End of mission
Deactivated 09 September 1979[1]
Orbital parameters
Reference system Geocentric
Regime Molniya [2]
Perigee 598 kilometres (372 mi)[4]
Apogee 39,700 kilometres (24,700 mi)[4]
Inclination 63.0 degrees[4]
Period 716.65 minutes[4]

Kosmos 1124 (Russian: Космос 1124 meaning Cosmos 1124) was a Soviet US-K missile early warning satellite which was launched in 1979 as part of the Soviet military's Oko programme. The satellite was designed to identify missile launches using optical telescopes and infrared sensors.[2]

Kosmos 1124 was launched from Site 43/4 at Plesetsk Cosmodrome in the Russian SSR.[3] A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 00:17 UTC on 28 August 1979.[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1979-077A.[4] The United States Space Command assigned it the Satellite Catalog Number 11509.[4]

Podvig says that it self-destructed and that its orbit was never stabilised.[1]

See also[edit]


  1. ^ a b c 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 McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 May 2012. 
  4. ^ a b c d e f McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 30 April 2012.