TDRSS

TDRSS (Tracking and Data Relay Satellite System) is a network of American communications satellites and ground stations used to support space communications for NASA and other government agencies. The system provides continuous communication coverage between low Earth orbiting spacecraft and control and data processing facilities on the ground. TDRSS is used to support a wide range of missions, including the International Space Station, the Hubble Space Telescope, and various scientific and Earth observation satellites. The system consists of a constellation of geosynchronous satellites and associated ground stations, which provide high-bandwidth, low-latency communication links for spacecraft in orbit.
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