Kosmos 400

Kosmos 400 (Russian: Космос 400 meaning Cosmos 400), also known as DS-P1-M No.3 was a satellite which was used as a target for tests of anti-satellite weapons. It was launched by the Soviet Union in 1971 as part of the Dnepropetrovsk Sputnik programme,[1] and used as a target for Kosmos 404, as part of the Istrebitel Sputnik programme.[2]

Kosmos 400
Mission typeASAT target
COSPAR ID1971-020A
SATCAT no.05050
Spacecraft properties
Spacecraft typeDS-P1-M
ManufacturerYuzhnoye
Launch mass650 kilograms (1,430 lb)
Start of mission
Launch date18 March 1971, 21:45:00 (1971-03-18UTC21:45Z) UTC
RocketKosmos-3M
Launch sitePlesetsk 132/1
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude990 kilometres (620 mi)
Apogee altitude995 kilometres (618 mi)
Inclination65.8 degrees
Period105 minutes
 

Launch

It was launched aboard a Kosmos-3M carrier rocket,[3] from Site 132/1 at the Plesetsk Cosmodrome. The launch occurred at 21:45:00 UTC on 18 March 1971.[4]

Orbit

Kosmos 400 was placed into a low Earth orbit with a perigee of 990 kilometres (620 mi), an apogee of 995 kilometres (618 mi), 65.8 degrees of inclination, and an orbital period of 105 minutes.[1] It was successfully intercepted and destroyed by Kosmos 404 on 4 April.[2] As of 2009, debris is still in orbit.[5]

Kosmos 400 was the third of the five original DS-P1-M satellites to be launched,[1] of which all but the first were successful. Following the five initial launches the DS-P1-M satellite was replaced with a derivative, Lira.[6]

See also

References
  1. Wade, Mark. "DS-P1-I". Encyclopedia Astronautica. Archived from the original on 5 January 2009. Retrieved 29 May 2009.
  2. Wade, Mark. "IS-A". Encyclopedia Astronautica. Archived from the original on 21 April 2012. Retrieved 29 May 2009.
  3. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 29 May 2009.
  4. Wade, Mark. "Kosmos 3". Encyclopedia Astronautica. Retrieved 29 May 2009.
  5. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 29 May 2009.
  6. Wade, Mark. "DS". Encyclopedia Astronautica. Archived from the original on 31 March 2009. Retrieved 29 May 2009.


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