Kosmos 2351

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Kosmos 2351
Mission type Early warning
COSPAR ID 1998-027A
SATCAT no. 25327
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 7 May 1998, 08:53 (1998-05-07UTC08:53Z) UTC
Rocket Molniya-M/2BL[2]
Launch site Plesetsk Cosmodrome[2][3]
Orbital parameters
Reference system Geocentric
Regime Molniya [2]
Perigee 543 kilometres (337 mi)[4]
Apogee 39,812 kilometres (24,738 mi)[4]
Inclination 62.9 degrees[4]
Period 717.80 minutes[4]

Kosmos 2351 (Russian: Космос 2351 meaning Cosmos 2351) is a Russian US-K missile early warning satellite which was launched in 1998 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 2351 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 08:53 UTC on 7 May 1998.[3] The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1998-027A.[3] The United States Space Command assigned it the Satellite Catalog Number 25327.[3]


  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 2351". National Space Science Data Centre. 2012-04-20. Retrieved 2012-04-25. 
  4. ^ a b c d 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]