Salyut-4
Salyut-4
Illustration of the Salyut 4 space station.
Lifetime: December 1974 - February 1977
Country (primary): Soviet Union
Primary Science
Salyut-4 was the fourth space station of the Soviet Salyut series. The Salyut space stations were aimed at conducting long-term research into the challenges of living in space. In addition, the stations carried a variety of astronomical and biological experiments.
High Energy Science
Salyut-4 carried an X-ray telescope to study cosmic X-ray sources.
Science Highlights
- Detected highly variable, low-energy flux (0.6-0.9 keV) in Scorpius X-1
- Non-detection of Circinus X-1 provided an upper limit on its 0.2-2.0 keV emission
- Monitored Cygnus X-1 and observed highly variable flux over time and energy
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