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Kosmos 1687

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Mission type
  
Early warning

SATCAT no.
  
16103

Spacecraft type
  
US-K

COSPAR ID
  
1985-088A

Mission duration
  
4 years

Launch date
  
30 September 1985

Launch mass
  
1,900 kilograms (4,200 lb)

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Kosmos 1687 (Russian: Космос 1687 meaning Cosmos 1687) 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.

Kosmos 1687 was launched from Site 16/2 at Plesetsk Cosmodrome in the Russian SSR. A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 19:23 UTC on 30 September 1985. The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1985-088A. The United States Space Command assigned it the Satellite Catalog Number 16103.

References

Kosmos 1687 Wikipedia