Beschreibung : Cap Canaveral post stamp and OTS 2 satellite.
OTS 2 (Orbital Test Satellite 2) was an experimental satellite inherited by ESA in 1975 from its predecessor, the European Space Research Organization (ESRO). The first of the pair of OTS satellites was lost at launch in September 1977. OTS 2 became one the the first GEO communications satellites to carry six Ku-band (14/11 GHz) transponders and was capable of handling 7,200 telephone circuits.
It completed its primary mission in 1984 after which the spacecraft was involved in a 6-year program of experiments, including the testing of a new attitude control technique taking advantage of solar wind forces. In January 1991, OTS 2 was moved out of the geostationary ring and into a graveyard orbit.

USA 1135 B - picture enhanced ?

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OTS 2 (SATELLITE) · DELTA 3914 · ORBITAL TEST SATELLITE