| Mission type | ABM radar target |
|---|---|
| COSPAR ID | 1969-031A |
| SATCATno. | 03846 |
| Spacecraft properties | |
| Spacecraft type | DS-P1-I |
| Manufacturer | Yuzhnoye |
| Launch mass | 300 kilograms (660 lb) |
| Start of mission | |
| Launch date | 16:00, March 28, 1969 (UTC) (1969-3-28T16:00:08Z) UTC |
| Rocket | Kosmos-2I 63SM |
| Launch site | Plesetsk133/1 |
| End of mission | |
| Decay date | 7 February 1970 (1970-02-7) |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 273 kilometres (170 mi) |
| Apogee altitude | 780 kilometres (480 mi) |
| Inclination | 71 degrees |
| Period | 95.2 minutes |
Kosmos 275 (Russian:Космос 275 meaningCosmos 275), also known asDS-P1-I No.5 was asatellite which was used as aradar target foranti-ballistic missile tests. It was launched by theSoviet Union in 1969 as part of theDnepropetrovsk Sputnik programme.[1]
It was launched aboard aKosmos-2I 63SM rocket,[2] fromSite 133/1 atPlesetsk. The launch occurred at 16:00:08 UTC on 28 March 1969.[3]
Kosmos 275 was placed into alow Earth orbit with aperigee of 273 kilometres (170 mi), anapogee of 780 kilometres (480 mi), 71 degrees ofinclination, and anorbital period of 95.2 minutes.[1] Itdecayed from orbit on 7 February 1970.[4]
Kosmos 275 was the fifth of nineteenDS-P1-I satellites to be launched.[1] Of these, all reached orbit successfully except theseventh.[5]
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