Kosmos 1701

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Kosmos 1701
Mission type Early warning
COSPAR ID 1985-105A
SATCAT no. 16235
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 9 November 1985, 08:25 (1985-11-09UTC08:25Z) UTC
Rocket Molniya-M/2BL[2]
Launch site Plesetsk Cosmodrome[2][3]
End of mission
Decay date 11 May 2011 (2011-05-12)[4]
Orbital parameters
Reference system Geocentric
Regime Molniya [2]
Perigee 656 kilometres (408 mi)[4]
Apogee 39,701 kilometres (24,669 mi)[4]
Inclination 63.1 degrees[4]
Period 717.82 minutes[4]

Kosmos 1701 (Russian: Космос 1701 meaning Cosmos 1701) is a Soviet US-K missile early warning satellite which was launched in 1985 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 1701 was launched from Site 41/1 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 08:25 UTC on 9 November 1985.[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1985-105A.[3] The United States Space Command assigned it the Satellite Catalog Number 16235.[3]

It re-entered the Earth's atmosphere on 11 May 2011.[4]

See also[edit]


  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. Archived from the original (pdf) on 15 March 2012. 
  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 1701". 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.