Kosmos 391

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Kosmos 391
Mission type ABM radar target
COSPAR ID 1971-002A
Spacecraft properties
Spacecraft type DS-P1-I
Manufacturer Yuzhnoye
Launch mass 300 kilograms (660 lb)
Start of mission
Launch date 14 January 1971, 12:00:00 (1971-01-14UTC12Z) UTC
Rocket Kosmos-2I 63SM
Launch site Plesetsk 133/1
End of mission
Decay date 21 February 1971 (1971-02-22)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 267 kilometres (166 mi)
Apogee 803 kilometres (499 mi)
Inclination 70.9 degrees
Period 95.3 minutes

Kosmos 391 (Russian: Космос 391 meaning Cosmos 391), also known as DS-P1-I No.11 was a satellite which was used as a radar target for anti-ballistic missile tests. It was launched by the Soviet Union in 1971 as part of the Dnepropetrovsk Sputnik programme.[1]

Launch[edit]

It was launched aboard a Kosmos-2I 63SM rocket,[2] from Site 133/1 at Plesetsk. The launch occurred at 12:00:00 UTC on 14 January 1971.[3]

Orbit[edit]

Kosmos 391 was placed into a low Earth orbit with a perigee of 267 kilometres (166 mi), an apogee of 803 kilometres (499 mi), 70.9 degrees of inclination, and an orbital period of 95.3 minutes.[1] It decayed from orbit on 21 February 1971.[4]

Kosmos 391 was the tenth of nineteen DS-P1-I satellites to be launched.[1] Of these, all reached orbit successfully except the seventh.[5]

See also[edit]

References[edit]

  1. ^ a b c Wade, Mark. "DS-P1-I". Encyclopedia Astronautica. Retrieved 28 May 2009. 
  2. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 28 May 2009. 
  3. ^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Retrieved 28 May 2009. 
  4. ^ McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 28 May 2009. 
  5. ^ Wade, Mark. "DS". Encyclopedia Astronautica. Retrieved 28 May 2009.