| Mission type | Early warning |
|---|---|
| Operator | VKS |
| COSPAR ID | 1991-064A |
| SATCATno. | 21702 |
| Mission duration | 9 months |
| 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 | 13 September 1991, 17:51:00 (1991-09-13UTC17:51Z) UTC[2] |
| Rocket | Proton-K/DM-2 |
| Launch site | Baikonur81/23 |
| End of mission | |
| Deactivated | 16 June 1992[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 2155 (Russian:Космос 2155 meaningCosmos 2155) is a RussianUS-KS missileearly warningsatellite which was launched in 1991 as part of theRussian Space Forces'Oko programme. The satellite is designed to identify missile launches usingoptical telescopes andinfrared sensors.[1]
Kosmos 2155 was launched fromSite 81/23 atBaikonur Cosmodrome in Kazakhstan.[1] AProton-K carrier rocket with aDM-2 upper stage was used to perform the launch, which took place at 17:51 UTC on 13 September 1991.[2][3] The launch successfully placed the satellite intogeostationary orbit. It subsequently received itsKosmos designation, and theinternational designator 1991-064A.[2] TheUnited States Space Command assigned it theSatellite Catalog Number 21702.[2][3]
It was operational for about 9 months.[3]
