Kosmos 123

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Kosmos 123
Mission type ABM radar target
COSPAR ID 1966-061A
Spacecraft properties
Spacecraft type DS-P1-Yu
Manufacturer Yuzhnoye
Launch mass 325 kilograms (717 lb)
Start of mission
Launch date 8 July 1966, 05:31 (1966-07-08UTC05:31Z) UTC
Rocket Kosmos-2I 63S1
Launch site Kapustin Yar 86/1
End of mission
Decay date 10 December 1966 (1966-12-11)
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 253 kilometres (157 mi)
Apogee 490 kilometres (300 mi)
Inclination 48.7 degrees
Period 91.97 minutes

Kosmos 123 (Russian: Космос 123 meaning Cosmos 123), also known as DS-P1-Yu No.5 was a Soviet satellite which was used as a radar calibration target for tests of anti-ballistic missiles.[1] It was built by the Yuzhnoye Design Bureau, and launched in 1966 as part of the Dnepropetrovsk Sputnik programme.[2]

A Kosmos-2I 63S1 carrier rocket was used to launch Kosmos 123.[3] The launch occurred from Site 86/1 at Kapustin Yar, at 05:31 GMT on 8 July 1966.[4]

Kosmos 123 separated from the carrier rocket into a low Earth orbit with an apogee of 490 kilometres (300 mi), a perigee of 253 kilometres (157 mi), 48.7 degrees of inclination, and an orbital period of 91.97 minutes.[2][5] It decayed from orbit on 10 December 1966.[5] Kosmos 123 was the sixth of seventy nine DS-P1-Yu satellites to be launched,[2] and the fifth of seventy two to successfully reach orbit.

See also[edit]


  1. ^ Krebs, Gunter. "DS-P1-Yu (11F618)". Gunter's Space Page. Retrieved 9 August 2009. 
  2. ^ a b c Wade, Mark. "DS-P1-Yu". Encyclopedia Astronautica. Retrieved 9 August 2009. 
  3. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 9 August 2009. 
  4. ^ Wade, Mark. "Kosmos 2". Encyclopedia Astronautica. Retrieved 9 August 2009. 
  5. ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 9 August 2009.