Kosmos 221

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Kosmos 221
Mission type ABM radar target
COSPAR ID 1968-043A
Spacecraft properties
Spacecraft type DS-P1-Yu
Manufacturer Yuzhnoye
Launch mass 250 kilograms (550 lb)
Start of mission
Launch date 24 May 1968, 07:04:50 (1968-05-24UTC07:04:50Z) UTC
Rocket Kosmos-2I 63SM
Launch site Kapustin Yar 86/4
End of mission
Decay date 31 August 1969 (1969-09-01)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 214 kilometres (133 mi)
Apogee 2,011 kilometres (1,250 mi)
Inclination 48.4 degrees
Period 107.5 minutes

Kosmos 221 (Russian: Космос 221 meaning Cosmos 221), also known as DS-P1-Yu No.14, 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 1968 as part of the Dnepropetrovsk Sputnik programme.[1] It had a mass of 250 kilograms (550 lb).[1]

Kosmos 221 was launched from Site 86/4 at Kapustin Yar,[2] atop a Kosmos-2I 63SM carrier rocket. The launch occurred on 24 May 1968 at 07:04:50 UTC, and resulted in Kosmos 221's successful deployment into low Earth orbit.[3] Upon reaching orbit, it was assigned its Kosmos designation, and received the International Designator 1968-043A.

Kosmos 221 was operated in an orbit with a perigee of 214 kilometres (133 mi), an apogee of 2,011 kilometres (1,250 mi), 48.4 degrees of inclination, and an orbital period of 107.5 minutes.[1][4] It remained in orbit until it decayed and reentered the atmosphere on 31 August 1969.[4] It was the thirteenth of seventy nine DS-P1-Yu satellites to be launched,[1] and the twelfth of seventy two to successfully reach orbit.[5]

See also[edit]


  1. ^ a b c d Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Archived from the original on 18 May 2012. Retrieved 10 August 2009. 
  2. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 10 August 2009. 
  3. ^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Archived from the original on 8 July 2012. Retrieved 10 August 2009. 
  4. ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 10 August 2009. 
  5. ^ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 10 August 2009.