Granat is an orbiting Russian X-ray and gamma-ray observatory for studying the sky in the energy range 2 keV–100 MeV; "Granat" is Russian for "garnet." After an initial period of pointed observations, Granat went into survey mode in September 1994 and continued operating until Nov 1998. The mission was carried out in collaboration with scientists from France, Denmark, and Bulgaria.
|launch date||Dec 1, 1989|
|orbit||53,697 × 149,862 km × 86.6°|