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Kosmos 553

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Kosmos 553

Kosmos 553
Mission type ABM radar target
COSPAR ID 1973-020A
Spacecraft properties
Spacecraft type DS-P1-Yu
Manufacturer Yuzhnoye
Launch mass 400 kilograms (880 lb)
Start of mission
Launch date 12 April 1973, 11:49:55 (1973-04-12T11:49:55Z) UTC
Rocket Kosmos-2I 63SM
Launch site Plesetsk 133/1
End of mission
Decay date Did not recognize date. Try slightly modifying the date in the first parameter.
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 264 kilometres (164 mi)
Apogee 470 kilometres (290 mi)
Inclination 70.9 degrees
Period 91.9 minutes

Kosmos 553 (Russian: Космос 553 meaning Cosmos 553), known before launch as DS-P1-Yu No.55, was a Soviet satellite which was launched in 1973 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]


Kosmos 553 was successfully launched into low Earth orbit at 11:49:55 UTC on 12 April 1973.[2] The launch took place from Site 133/1 at the Plesetsk Cosmodrome,[3] and used a Kosmos-2I 63SM carrier rocket.


Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1973-020A.[4] The North American Aerospace Defense Command assigned it the catalogue number 06427.

Kosmos 553 was the sixty-first of seventy nine DS-P1-Yu satellites to be launched,[1] and the fifty-fifth of seventy two to successfully reach orbit.[5] It was operated in an orbit with a perigee of 264 kilometres (164 mi), an apogee of 470 kilometres (290 mi), 70.9 degrees of inclination, and an orbital period of 91.9 minutes.[6] It remained in orbit until it decayed and reentered the atmosphere on 11 November 1973.[6]

See also


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