|Launch mass||286 kilograms (631 lb)|
|Start of mission|
|Launch date||14 February 1967, 10:04:55UTC|
|Launch site||Kapustin Yar 86/1|
|End of mission|
|Decay date||6 July 1967|
|Perigee altitude||206 kilometres (128 mi)|
|Apogee altitude||1,186 kilometres (737 mi)|
Kosmos 142 (Russian: Космос 142 meaning Cosmos 142), also known as DS-U2-I No.2, was a Soviet satellite which was launched in 1967 as part of the Dnepropetrovsk Sputnik programme. It was a 286-kilogram (631 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the effects on radio waves of passing through the ionosphere.
A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 142 into low Earth orbit. The launch took place from Site 86/1 at Kapustin Yar. The launch occurred at 10:04:55 UTC on 14 February 1967, and resulted in the successful insertion of the satellite into orbit. Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1967-013A. The North American Aerospace Defense Command assigned it the catalogue number 02678.
Kosmos 142 was the second of three DS-U2-I satellites to be launched. It was operated in an orbit with a perigee of 206 kilometres (128 mi), an apogee of 1,186 kilometres (737 mi), 48.4 degrees of inclination, and an orbital period of 98.7 minutes. On 6 July 1967, it decayed from orbit and reentered the atmosphere.
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