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Kosmos 225
Mission type	Magnetosphere
COSPAR ID	1968-048A
SATCAT no.	03279
Mission duration	144 days
Spacecraft properties
Spacecraft type	DS-U1-Ya
Manufacturer	Yuzhnoye
Launch mass	400 kg
Start of mission
Launch date	11 June 1968, 21:29:54 GMT
Rocket	Kosmos-2I 63SM
Launch site	Kapustin Yar, Site 86/4
Contractor	Yuzhnoye
End of mission
Last contact	29 June 1968
Decay date	2 November 1968
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	255 km
Apogee altitude	512 km
Inclination	48.4°
Period	92.2 minutes
Epoch	11 June 1968

Kosmos 225 (Russian: Космос 225 meaning Cosmos 225), also known as DS-U1-Ya No.2, was a Soviet satellite which was launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It was a 400 kilograms (880 lb) spacecraft,^[1] which was built by the Yuzhnoye Design Bureau, and was used to investigate cosmic rays and flows of charged particles in the Earth's magnetosphere.^[2]

A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 225 into low Earth orbit. The launch took place from Site 86/4 at Kapustin Yar.^[3] The launch occurred at 21:29:54 GMT on 11 June 1968, and resulted in the successful insertion of the satellite into orbit.^[4] Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1968-048A.^[5] The North American Air Defense Command assigned it the catalogue number 03279.

Kosmos 225 was the second of two DS-U1-Ya satellites to be launched, but the only one to successfully reach orbit; the DS-U1-Ya No.1 satellite having been lost in a launch failure, on 6 March 1968, due to a second stage malfunction, 216 seconds into its flight.^[2]^[6] Kosmos 225 was operated in an orbit with a perigee of 255 kilometres (158 mi), an apogee of 512 kilometres (318 mi), an inclination of 48.4°, and an orbital period of 92.2 minutes.^[7] It completed operations on 29 June 1968, before decaying from orbit and reentering the atmosphere on 2 November 1968.^[7]

References

^ ^a ^b "World Civil Satellites 1957-2006". Space Security Index. Archived from the original on 18 July 2011. Retrieved 24 December 2009.
^ ^a ^b Wade, Mark. "DS-U1-Ya". Encyclopedia Astronautica. Archived from the original on 19 June 2010. Retrieved 24 December 2009.
^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 24 December 2009.
^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 18 June 2012. Retrieved 24 December 2009.
^ "Cosmos 225". NSSDC Master Catalog. US National Space Science Data Center. Retrieved 24 December 2009.
^ Krebs, Gunter. "DS-U1-Ya". Gunter's Space Page. Retrieved 24 December 2009.
^ ^a ^b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 24 December 2009.