Twelve Prognoz satellites were launched between 14 April 1972 and 29 August 1996, all by
Molniya-M carrier rockets. The satellites were placed in
high Earth orbits. The first ten Prognoz satellites were launched from
Site 31/6 at the
Baikonur Cosmodrome, and the last two from
Site 43/3 at the
Plesetsk Cosmodrome. The satellites were designed for
Solar research; however, the later satellites were used for other areas, including research into the
Big Bang theory and Earth's
magnetosphere. The tenth satellite was part of the
Interkosmos programme. ==Satellites==