Kosmos 257
| Mission type | ABM radar target |
|---|---|
| COSPAR ID | 1968-107A  |
| SATCAT no. | 03578 |
| Spacecraft properties | |
| Spacecraft type | DS-P1-Yu |
| Manufacturer | Yuzhnoye |
| Launch mass | 325 kilograms (717 lb) |
| Start of mission | |
| Launch date | 3 December 1968, 14:52:21 (1968-12-03UTC14:52:21Z) UTC |
| Rocket | Kosmos-2I 63SM |
| Launch site | Plesetsk 133/1 |
| End of mission | |
| Decay date | 5 March 1969 (1969-03-06) |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 261 kilometres (162 mi) |
| Apogee altitude | 396 kilometres (246 mi) |
| Inclination | 70.9 degrees |
| Period | 91.10 minutes |
Kosmos 257 (Russian: Космос 257 meaning Cosmos 257), known before launch as DS-P1-Yu No.17, was a Soviet satellite which was used as a radar calibration target for tests of anti-ballistic missiles. It was built by the Yuzhnoye Design Bureau, and launched in 1968 as part of the Dnepropetrovsk Sputnik programme.[1] It had a mass of 325 kilograms (717 lb).[1]
Kosmos 257 was launched from Site 133/1 at Plesetsk,[2] atop a Kosmos-2I 63SM carrier rocket. The launch occurred on 3 December 1968 at 14:52:21 UTC, and resulted in Kosmos 257's successful deployment into low Earth orbit.[3] Upon reaching orbit, it was assigned its Kosmos designation, and received the International Designator 1968-107A.
Kosmos 257 was operated in an orbit with a perigee of 261 kilometres (162 mi), an apogee of 396 kilometres (246 mi), 70.9 degrees of inclination, and an orbital period of 91.10 minutes.[1][4] It remained in orbit until it decayed and reentered the atmosphere on 5 March 1969.[4] It was the seventeenth of seventy nine DS-P1-Yu satellites to be launched,[1] and the sixteenth of seventy two to successfully reach orbit.[5]
See also
Spaceflight portal
References
- ^ a b c d Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 2 June 2012. Retrieved 11 August 2009.
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 11 August 2009.
- ^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 18 June 2012. Retrieved 11 August 2009.
- ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 11 August 2009.
- ^ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 11 August 2009.
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Dnepropetrovsk Sputnik programme
- #1
- #2
- Kosmos 1
- #2
- Kosmos 8
- K-40 #1
- K-40 #2
- Kosmos 108
- Kosmos 196
- Ya #1
- Kosmos 215
- Kosmos 225
- Interkosmos 2
- Kosmos 335
- Interkosmos 8
- Kosmos 93
- Kosmos 95
- Kosmos 97
- Kosmos 119
- Kosmos 135
- Kosmos 137
- Kosmos 142
- Kosmos 145
- Kosmos 163
- Kosmos 197
- Kosmos 202
- Kosmos 219
- Kosmos 259
- Kosmos 261
- Kosmos 262
- Kosmos 321
- Kosmos 348
- Interkosmos 3
- Kosmos 356
- Kosmos 378
- Kosmos 426
- Interkosmos 5
- Kosmos 461
- Oreol-1
- Interkosmos 9
- Interkosmos 10
- Oreol-2
- Interkosmos 12
- Interkosmos 13
- Interkosmos 14
- Kosmos 166
- Kosmos 230
- Interkosmos 1
- Interkosmos 4
- Interkosmos 7
- Interkosmos 11
- Interkosmos 14
- Interkosmos 16
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