Descrizione : SAS-B was the second in the series of small spacecraft designed to extend the astronomical studies in the X-ray, gamma-ray, ultraviolet, visible, and infrared regions. The primary objective of the SAS-B was to measure the spatial and energy distribution of primary galactic and extragalactic gamma radiation with energies between 20 and 300 MeV.
The telescope experiment was initially turned on November 20, 1972, and by November 27, 1972, the spacecraft became fully operational. The low-voltage power supply for the experiment failed on June 8, 1973. No useful scientific data were obtained after that date.
Malindi ( Kenya) post stamp and Explorer 48 satellite.

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EXPLORER 48 (SAS B) (SATELLITE) · SCOUT D1 · LAUNCHED FROM KENYA