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Kosmos 745
Mission type	ABM radar target
COSPAR ID	1975-058A
SATCAT no.	07982
Spacecraft properties
Spacecraft type	DS-P1-Yu
Manufacturer	Yuzhnoye
Launch mass	400 kilograms (880 lb)
Start of mission
Launch date	24 June 1975, 12:05 UTC
Rocket	Kosmos-2I 63SM
Launch site	Plesetsk 133/1
End of mission
Decay date	12 March 1976
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	260 kilometres (160 mi)
Apogee altitude	499 kilometres (310 mi)
Inclination	70.9 degrees
Period	92.1 minutes

Kosmos 745 (Russian: Космос 745 meaning Cosmos 745), also known as DS-P1-Yu No.76, was a Soviet satellite which was launched in 1975 as part of the Dnepropetrovsk Sputnik programme. It was a 400-kilogram (880 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.^[1]

A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 745 from Site 133/1 of the Plesetsk Cosmodrome.^[2] The launch occurred at 12:05 UTC on 24 June 1975, and resulted in the successfully insertion of the satellite into low Earth orbit.^[3] Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1975-058A.^[4] The North American Aerospace Defense Command assigned it the catalogue number 07982.

Kosmos 745 was the seventy-seventh of seventy nine DS-P1-Yu satellites to be launched,^[1] and the seventieth of seventy two to successfully reach orbit.^[5] It was operated in an orbit with a perigee of 260 kilometres (160 mi), an apogee of 499 kilometres (310 mi), 70.9 degrees of inclination, and an orbital period of 92.1 minutes.^[6] It remained in orbit until it decayed and reentered the atmosphere on 12 March 1976.^[6]

References

^ ^a ^b Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 2 June 2012. Retrieved 2 September 2009.
^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2 September 2009.
^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 18 June 2012. Retrieved 2 September 2009.
^ "Cosmos 745". NSSDC Master Catalog. US National Space Science Data Center. Retrieved 2 September 2009.
^ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 2 September 2009.
^ ^a ^b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2 September 2009.