Spacecraft type DS-P1-I Rocket Kosmos-2I 63SM Launch date 28 March 1969 Decay date 7 February 1970 | COSPAR ID 1969-031A Launch mass 300 kilograms (660 lb) Manufacturer Yuzhnoye Design Office | |
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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.
It was launched aboard a Kosmos-2I 63SM rocket, from Site 133/1 at Plesetsk. The launch occurred at 16:00:08 UTC on 28 March 1969.
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. It decayed from orbit on 7 February 1970.
Kosmos 275 was the fifth of nineteen DS-P1-I satellites to be launched. Of these, all reached orbit successfully except the seventh.