|Mission type||Early warning|
|Mission duration||4 years |
|Launch mass||1,900 kilograms (4,200 lb)|
|Start of mission|
|Launch date||25 July 1990, 18:13UTC|
|Launch site||Plesetsk Cosmodrome|
|Perigee altitude||660 kilometres (410 mi)|
|Apogee altitude||39,712 kilometres (24,676 mi)|
Kosmos 2087 (Russian: Космос 2087 meaning Cosmos 2087) is a Russian US-K missile early warning satellite which was launched in 1990 as part of the Russian Space Forces' Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.
Kosmos 2087 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 18:13 UTC on 25 July 1990. The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1990-064A. The United States Space Command assigned it the Satellite Catalog Number 20707.