Kosmos 391
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]
| Mission type | ABM radar target |
|---|---|
| COSPAR ID | 1971-002A |
| SATCAT no. | 04847 |
| 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 UTC |
| Rocket | Kosmos-2I 63SM |
| Launch site | Plesetsk 133/1 |
| End of mission | |
| Decay date | 21 February 1971 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 267 kilometres (166 mi) |
| Apogee altitude | 803 kilometres (499 mi) |
| Inclination | 70.9 degrees |
| Period | 95.3 minutes |
Launch
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
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
References
- Wade, Mark. "DS-P1-I". Encyclopedia Astronautica. Archived from the original on 30 November 2009. Retrieved 28 May 2009.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 28 May 2009.
- Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 8 July 2012. Retrieved 28 May 2009.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 28 May 2009.
- Wade, Mark. "DS". Encyclopedia Astronautica. Archived from the original on 31 March 2009. Retrieved 28 May 2009.