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The Radsat satellite.

The Radsat satellite. (Credit: USAF)

Lifetime: October 1972 - April 1974 (Solar Progot, Deuteron, Triton Solid-State Telescope turned off)

Operator (primary): United States

Primary Science

The objectives of Radsat was to measure the background gamma radiation over the whole Earth in the 100 to 300 keV range and in the >700 keV range. In addition, Radsat tested the effects of the space environment on various thermal control coatings and observed extreme and far ultraviolet radiation from local and galactic sources.

Science Highlights

  • Observed several gamma-ray bursts also observed by the Vela satellites
  • In one gamma-ray burst, a short (~60 microsecond) burst was seen before the Vela trigger

Links to more information


A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

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