Third Small Astronomy Satellite

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The Third Small Astronomy Satellite was a space telescope operated by NASA. It functioned from May 1975 to April 1979. It covered the X-ray range and to this end had four X-ray experiments onboard.

[edit] References

HEASARC: Observatories - The Third Small Astronomy Satellite (SAS-3). NASA. Retrieved on 2008-03-03.