DS-U1-R was a Soviet satellite which was launched in 1970 as part of the Dnepropetrovsk Sputnik programme. It was a 295 kg spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study spectral ranges in the Earth's atmosphere.
A Kosmos-2 carrier rocket was used to launch the satellite into low Earth orbit from Kapustin Yar. Upon reaching orbit, the satellite was assigned the Kosmos 335 designation.
It completed operations on 20 June 1970. On 22 June 1970, it decayed from orbit and reentered the atmosphere.
|Type / Application:||Atmospheric research|
|Orbit:||247 km × 391 km, 48.4°|
|Kosmos 335 (DS-U1-R #1)||24.04.1970||KY LC-86/4||Kosmos-2|