Tracking and Data Relay Satellite
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Tracking and Data Relay Satellite

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High Quality Content by WIKIPEDIA articles! A Tracking and Data Relay Satellite (TDRS) is 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 satellites and the International Space Station. This system was designed to replace a pre-existing worldwide network of ground stations that had supported all of NASA's manned flight missions and unmanned satellites in low-Earth orbits. The primary system design goal was to increase the amount of time that these sp...