| Mission type | Early warning |
|---|---|
| Operator | VKS |
| COSPAR ID | 1985-016A |
| SATCAT no. | 15574 |
| Mission duration | 2 years |
| Spacecraft properties | |
| Spacecraft type | US-KS (74Kh6)[1] |
| Manufacturer | Lavochkin[1] |
| Launch mass | 2,400 kilograms (5,300 lb)[1] |
| Start of mission | |
| Launch date | 21 February 1985, 07:57:00 UTC[2] |
| Rocket | Proton-K/DM |
| Launch site | Baikonur 200/39 |
| End of mission | |
| Deactivated | 16 January 1987 [3] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Instruments | |
| Optical telescope with 50 centimetres (20 in) aperture [1] Infrared sensor/s [1] Smaller telescopes[1] | |
Kosmos 1629 (Russian: Космос 1629 meaning Cosmos 1629) is a Soviet US-KS missile early warning satellite which was launched in 1985 as part of the Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.[1]
Kosmos 1629 was launched from Site 200/39 at Baikonur Cosmodrome in the Kazakh SSR.[1] A Proton-K carrier rocket with a DM upper stage was used to perform the launch, which took place at 07:57 UTC on 21 February 1985.[2][3] The launch successfully placed the satellite into geostationary orbit. It subsequently received its Kosmos designation, and the international designator 1985-016A.[2] The United States Space Command assigned it the Satellite Catalog Number 15574.[2][3]
It was operational for about 2 years.[3]
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