|Mission type||Solar research|
|Launch mass||291 kilograms (642 lb)|
|Start of mission|
|Launch date||11 February 1966, 18:00:00UTC|
|Launch site||Kapustin Yar 86/1|
|End of mission|
|Decay date||21 November 1966|
|Perigee||190 kilometres (120 mi)|
|Apogee||344 kilometres (214 mi)|
Kosmos 108 (Russian: Космос 108 meaning Cosmos 108), also known as DS-U1-G No.1, was a Soviet satellite which was launched in 1966 as part of the Dnepropetrovsk Sputnik programme. It was a 291-kilogram (642 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the effects of solar activity on the upper atmosphere.
A Kosmos-2I 63S1 carrier rocket was used to launch Kosmos 108 into low Earth orbit. The launch took place from Site 86/1 at Kapustin Yar. The launch occurred at 18:00:00 GMT on 11 February 1966, and resulted in the successfully insertion of the satellite into low Earth orbit. Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1966-011A. The North American Aerospace Defense Command assigned it the catalogue number 02002.
Kosmos 108 was the first of two DS-U1-G satellites to be launched, the other being Kosmos 196. It was operated in an orbit with a perigee of 190 kilometres (120 mi), an apogee of 344 kilometres (214 mi), 48.8 degrees of inclination, and an orbital period of 89.8 minutes. It completed operations on 26 February 1966. On 21 November 1966, it decayed from orbit and reentered the atmosphere.
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