Soyuz 7K-MF6

The Soyuz 7K-MF6 was a surplus Soyuz ASTP spacecraft modified with an East German MF6 multispectral camera, made by Carl Zeiss Jena, fitted in place of the universal docking apparatus. It flew once, as Soyuz 22, on a solo Earth resources mission. The spacecraft launched from Baikonur on 15 September 1976 on a Soyuz-U rocket with the cosmonauts Aksyonov and Bykovsky aboard, using the call sign Yastreb. It reached an orbit of about 296 by 185 kilometres at an inclination of 64.8 degrees, spent about eight days photographing the Earth to test and refine methods for studying the geology of the Earth's surface from space, and decayed from orbit on 23 September 1976. It had a crew size of two, a gross mass of about 6,510 kg and a habitable volume of 9 cubic metres, and belongs to the Soyuz family built by the Korolev bureau.