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SAS-3 (Explorer 53) X-ray observatory spacecraft

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.
First Flight Year
1,975
Last Flight Year
1,979

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Creation Time
August 13, 2026 at 16:33:17 UTC
Updated Time
August 13, 2026 at 16:33:17 UTC