Tags: Artificialsatellite, Satellite.
Kosmos 261 (Russian: Космос 261 meaning Cosmos 261) also known as DS-U2-GK No.1 was a Soviet satellite which was launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It was a 347-kilogram (765 lb) spacecraft which was built by the Yuzhnoye Design Bureau and was used to study the density of air in the upper atmosphere and investigate aurorae.A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 261 into low Earth orbit from Site 133/1 at the Plesetsk Cosmodrome.