Kosmos 275

Kosmos 275

Mission type	ABM radar target
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 133/1 at Plesetsk. 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] It decayed 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]

See also

• 1969 in spaceflight

References

1. Wade, Mark. "DS-P1-I". Encyclopedia Astronautica. Archived from the original on 30 November 2009. Retrieved 28 May 2009.
2. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 28 May 2009.
3. Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 18 June 2012. Retrieved 28 May 2009.
4. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 28 May 2009.
5. Wade, Mark. "DS". Encyclopedia Astronautica. Archived from the original on 31 March 2009. Retrieved 28 May 2009.