Kosmos 265

Kosmos 265
Mission typeABM radar target
COSPAR ID1969-012A Edit this at Wikidata
SATCAT no.03675Edit this on Wikidata
Spacecraft properties
Spacecraft typeDS-P1-Yu
ManufacturerYuzhnoye
Launch mass325 kg (717 lb)
Start of mission
Launch date7 February 1969, 13:59 (1969-02-07UTC13:59Z) UTC
RocketKosmos-2I 63SM
Launch sitePlesetsk 133/1
End of mission
Decay date1 May 1969 (1969-06)
Orbital parameters
Reference systemGeocentric
RegimeLow 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. It had a mass of 325 kg (717 lb).

Kosmos 265 was launched from Plesetsk Cosmodrome Site 133/1, 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. 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. It remained in orbit until it decayed and reentered the atmosphere on 1 May 1969. It was the eighteenth of seventy nine DS-P1-Yu satellites to be launched, and the seventeenth of seventy two to successfully reach orbit.

See also



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