Gamma was a Soviet gamma ray telescope. It was launched on 11 July 1990 into an orbit around Earth with a height of 375 km and an inclination of 51.6 degrees. Read more
The Gamma observatory was a Soviet-based spacecraft launched on 11 July 1990. The satellite was in an orbit of ~ 375 km altitude, 51.6 degrees inclination. Gamma offered the possibility of locating COS-B sources with a precision of a few arcminutes. The mission lasted ~ 2 years. Read more