Gamma (satellite)

Gamma

Drawing of the Gamma space telescope satellite. The spaceframe and subsystems of the satellite were based on the Progress spacecraft
Operator	RKA
COSPAR ID	1990-058A
SATCAT no.	20683
Mission duration	2 years
Spacecraft properties
Bus	Soyuz
Launch mass	7,350 kg (16,200 lb)[1]
Start of mission
Launch date	July 11, 1990 (1990-07-11)
Rocket	Soyuz[2]
Launch site	Tyuratam
End of mission
Decay date	February 28, 1992 (1992-02-28)
Orbital parameters
Eccentricity	0.00326
Perigee altitude	190 km [2]
Apogee altitude	233 km [2]
Inclination	51.6°
Period	88.45  min
Main
Wavelengths	Gamma ray
Instruments
Gamma-1 telescope (50 MeV to 6 GeV)[3] Disk-M telescope (20 keV to 5 MeV)[3] Pulsar X-2 telescope (2–25 keV)[3]

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. It lasted for around 2 years. On board the mission were three telescopes, all of which could be pointed at the same source. The project was a joint Soviet-French project.^[3]