SAS-3 (Explorer 53) was NASA’s third Small Astronomy Satellite, launched in 1975 to study cosmic X-ray sources and transient phenomena before its mission ended in 1979.
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Identity
Aliases
SAS-3SAS-CExplorer 53Third Small Astronomy Satellite
Family Name
SAS-3
Full Name
SAS-3 (Explorer 53) X-ray observatory spacecraft
Roles
observatoryorbiter
Status
retired
Type
spacecraft
Details
Description
SAS-3 (Explorer 53) was NASA’s third Small Astronomy Satellite, launched in 1975 to study cosmic X-ray sources and transient phenomena before its mission ended in 1979.