| Mission type | ABM radar target |
|---|---|
| COSPAR ID | 1969-012A |
| SATCAT no. | 03675 |
| Spacecraft properties | |
| Spacecraft type | DS-P1-Yu |
| Manufacturer | Yuzhnoye |
| Launch mass | 325 kg (717 lb) |
| Start of mission | |
| Launch date | 7 February 1969, 13:59 UTC |
| Rocket | Kosmos-2I 63SM |
| Launch site | Plesetsk 133/1 |
| End of mission | |
| Decay date | 1 May 1969 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 261 km (162 mi) |
| Apogee altitude | 413 km (257 mi) |
| Inclination | 70.9 degrees |
| Period | 91.3 minutes |
Kosmos 265 (Russian: Космос 265 meaning Cosmos 265), known before launch as DS-P1-Yu No.21, 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 1969 as part of the Dnepropetrovsk Sputnik programme.[1] It had a mass of 325 kg (717 lb).[1]
Kosmos 265 was launched from Plesetsk Cosmodrome Site 133/1,[2] atop a Kosmos-2I 63SM carrier rocket. The launch occurred on 7 February 1969 at 13:59 UTC, and resulted in Kosmos 265's successful deployment into low Earth orbit.[3] Upon reaching orbit, it was assigned its Kosmos designation, and received the International Designator 1969-012A.
Kosmos 265 was operated in an orbit with a perigee of 261 kilometres (162 mi), an apogee of 413 kilometres (257 mi), 70.9 degrees of inclination, and an orbital period of 91.3 minutes.[1][4] It remained in orbit until it decayed and reentered the atmosphere on 1 May 1969.[4] It was the eighteenth of seventy nine DS-P1-Yu satellites to be launched,[1] and the seventeenth of seventy two to successfully reach orbit.[5]
- ^ a b c d Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 2 June 2012. Retrieved 13 August 2009.
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 13 August 2009.
- ^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 18 June 2012. Retrieved 13 August 2009.
- ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 13 August 2009.
- ^ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 13 August 2009.