Kosmos 2261 Explained

Kosmos 2261
Mission Type:Early warning
Cospar Id:1993-051A
Satcat:22741
Mission Duration:4 years
Spacecraft Type:US-K
Launch Date: UTC
Launch Rocket:Molniya-M/2BL
Launch Site:Plesetsk Cosmodrome
Orbit Reference:Geocentric
Orbit Regime:Molniya
Orbit Inclination:62.9 degrees
Orbit Period:717.70 minutes
Apsis:gee

Kosmos 2261 (Russian: Космос 2261 meaning Cosmos 2261) is a Russian US-K missile early warning satellite which was launched in 1993 as part of the Russian Space Forces' Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors. It was estimated in the west that it stopped functioning in March 1998,[1] and reentered destructively on December 31, 2012. (the early morning of January 1, 2013 in some time zones)

Kosmos 2261 was launched from Site 16/2 at Plesetsk Cosmodrome in Russia. A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 14:53 UTC on 10 August 1993. The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1993-051A. The United States Space Command assigned it the Satellite Catalog Number 22741.

Its predicted re-entry time was December 31, 2012 at 11:29 UTC ± 2 hours.[2]

See also

References

  1. Book: N. Busch. No End in Sight: The Continuing Menace of Nuclear Proliferation. 2004. University Press of Kentucky. 978-0-8131-2676-0. 97.
  2. Web site: Aerospace.org - Cosmos 2261 . 2013-08-29 . https://web.archive.org/web/20170310044130/http://www.aerospace.org/cords/reentry-predictions/past-reentries-2012/1993-051a/ . 2017-03-10 . dead .

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