CRRES


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CRRES

Abbrev. for Combined Release and Radiation Effects Satellite, a joint NASA/US Air Force satellite launched July 1990 into a highly elliptical Earth orbit to monitor the plasma in the magnetosphere. Its instruments were designed to measure the energy, mass, and direction of flow of charged particles and check the effects of radiation on a package of electronic devices and components. The satellite performed several of its experiments well, but contact with it was lost Oct. 12 1991, presumably because of onboard battery failure.