Beschreibung : Launch of STS-43 Atlantis, whose primary goal was launching the fourth Tracking and Data Relay Satellite, TDRS-E. The flight also tested an advanced heatpipe radiator for potential use on the then-future space station and conducted a variety of medical and materials science investigations.
A tracking and data relay satellite (TDRS) is a type of communications satellite that forms part of the Tracking and Data Relay Satellite System (TDRSS) used by NASA and other United States government agencies for communications to and from independent "User Platforms" such as satellites, balloons, aircraft, and the International Space Station. This system was designed to replace an existing worldwide network of ground stations that had supported all of NASA`s manned flight missions and unmanned satellites in low-Earth orbits.
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USA 2284 - picture enhanced ?

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Weltraumereignis :

STS 43 (ATLANTIS) · TDRS-E (RELAY SATELLITE)