Beschreibung : Houston post stamp and ejection SPA 01 satellite.
Shuttle Pallet Satellite, SPAS-1 was built by the West German aerospace firm Messerschmitt-Bolkow-Blohm. SPAS-1 was unique in that it was designed to operate in the payload bay or be deployed by the RMS as a free-flying satellite. It carried 10 experiments to study formation of metal alloys in microgravity, the operation of heat pipes, instruments for remote sensing observations, and a mass spectrometer to identify various gases in the payload bay. It was deployed by the RMS and flew alongside and over Challenger for several hours, performing various maneuvers, while a U.S.-supplied camera mounted on SPAS-1 took pictures of the orbiter. The RMS later grappled the pallet and returned it to the payload bay.

USA 1790 - picture enhanced ?

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Weltraumereignis :

STS 7 (CHALLENGER) · ANIK C2, PALAPA B1 & SPAS 01 (SATELLITES)