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TDRS Program Logo Location of TDRS as of March 2019 An unflown TDRS on display at the Steven F. Udvar-Hazy Center in Chantilly, Virginia.. The U.S. Tracking and Data Relay Satellite System (TDRSS, pronounced "T-driss") is a network of American communications satellites (each called a tracking and data relay satellite, TDRS) and ground stations used by NASA for space communications.
Use of operating frequencies near 2150 (plus or minus 150) MHz and near 14.3 (plus or minus 0.9) GHz were the initial plan. TDRSS was originally intended to support satellites with apogees below 12,000 km. Spacecraft in the TDRSS require only one communications system, since ground-based telemetry stations will be compatible with TDRSS equipment.
The DSN, as the name implies, tracks probes in deep space (more than 10,000 miles (16,000 km) from Earth), while NEN and TDRSS are used to communicate with satellites in low earth orbit. TDRSS uses a network of 10 geostationary communication satellites, and a single ground station at White Sands Test Facility. [1]
The Network Control Center Data System (NCCDS) is an element of the SN ground segment. [3] Collocated with the White Sands Tracking and Data Relay Satellite System, the NCCDS is the operations control facility for the network. It schedules most Space Network elements and supporting elements and provides interfaces for planning, acquisition ...
Along with Marisat F2, GOES 3 and LES-9, it was one of a number of satellites that were transferred to the US National Science Foundation in 1998, [11] for communications with the Amundsen–Scott South Pole Station. [12] After Marisat was retired, TDRS-1 became the primary means of communication with the research station. [12]
The MILA tracking station was installed in 1966 as part of a worldwide network of 17 ground-based tracking stations to support the Apollo program. It was first used for a Saturn 1B test launch in July 1966. Training consoles were installed shortly thereafter to train engineers from the Johnson Space Center. [2]
Robert D. Cabana, director of KSC, announces the signing of the LC-39A lease agreement on April 14, 2014.. In December 2013, NASA and SpaceX were in negotiations for SpaceX to lease Kennedy Space Center Launch Complex 39A, after SpaceX was selected in a multi-company bid process, following NASA's decision in early 2013 to lease the unused complex as part of a bid to reduce annual operation and ...
STS-43, the ninth mission for Space Shuttle Atlantis, was a nine-day mission whose primary goal was launching the TDRS-E satellite (TDRS-5). 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.