Kosmos 307
Introduction '''Kosmos 307''' ( meaning ''Cosmos 307''), known before launch as '''DS-P1-Yu No.22''', was a Soviet satellite launched in 1969 as part of the Dnepropetrovsk Sputnik programme. It was a  spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.
Launch Kosmos 307 was launched from Site 86/4 at Kapustin Yar, atop a Kosmos-2I 63SM carrier rocket. The launch occurred on 24 October 1969 at 13:01:58 UTC, and resulted in the successful deployment of Kosmos 307 into low Earth orbit. Upon reaching orbit, it was assigned its Kosmos designation, and received the International Designator 1969-094A.Kosmos 307 was operated in an orbit with a perigee of , an apogee of , 48.4 degrees of inclination, and an orbital period of 107.7 minutes. It remained in orbit until it decayed and reentered the atmosphere on 30 December 1970.It was the twenty-sixth of seventy nine DS-P1-Yu satellites to be launched, and the twenty-fourth of seventy two to successfully reach orbit.
See also * 1969 in spaceflight
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