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Kosmos 265
Mission typeABM radar target
COSPAR ID 1969-012A Edit this at Wikidata
SATCAT no.03675 Edit this on Wikidata
Spacecraft properties
Spacecraft type DS-P1-Yu
Manufacturer Yuzhnoye
Launch mass325 kg (717 lb)
Start of mission
Launch date7 February 1969, 13:59 (1969-02-07UTC13:59Z) UTC
Rocket Kosmos-2I 63SM
Launch site Plesetsk 133/1
End of mission
Decay date1 May 1969 (1969-06)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee altitude261 km (162 mi)
Apogee altitude413 km (257 mi)
Inclination70.9 degrees
Period91.3 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]

See also

References

  1. ^ a b c d Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 2 June 2012. Retrieved 13 August 2009.
  2. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 13 August 2009.
  3. ^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 18 June 2012. Retrieved 13 August 2009.
  4. ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 13 August 2009.
  5. ^ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 13 August 2009.