Mission type | ABM radar target |
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COSPAR ID | 1969-031A ![]() |
SATCAT no. | 03846![]() |
Spacecraft properties | |
Spacecraft type | DS-P1-I |
Manufacturer | Yuzhnoye |
Launch mass | 300 kilograms (660 lb) |
Start of mission | |
Launch date | 16:00:08, March 28, 1969 (UTC) (1969-03-28T16:00:08Z) UTC |
Rocket | Kosmos-2I 63SM |
Launch site | Plesetsk 133/1 |
End of mission | |
Decay date | 7 February 1970 (7 February 1970) |
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 meaning Cosmos 275), also known as DS-P1-I No.5 was a satellite which was used as a radar target for anti-ballistic missile tests. It was launched by the Soviet Union in 1969 as part of the Dnepropetrovsk Sputnik programme.[1]
It was launched aboard a Kosmos-2I 63SM rocket,[2] from Site 133/1atPlesetsk. The launch occurred at 16:00:08 UTC on 28 March 1969.[3]
Kosmos 275 was placed into a low Earth orbit with a perigee of 273 kilometres (170 mi), an apogee of 780 kilometres (480 mi), 71 degrees of inclination, and an orbital period of 95.2 minutes.[1]Itdecayed from orbit on 7 February 1970.[4]
Kosmos 275 was the fifth of nineteen DS-P1-I satellites to be launched.[1] Of these, all reached orbit successfully except the seventh.[5]
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Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in underline. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets). |
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