TDRS-A

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TDRS-A
Organization NASA-Office of Tracking and Data Acquisition (United States)
Mission type Communications
Launch date April 5, 1983 (1983-04-05)
Launch vehicle STS-6
Carrier rocket Space Shuttle
Launch site Cape Canaveral, United States
COSPAR ID 1983-026B
Mass 2268.0 kg
Alternate Names TDRS 1,Tracking and Data Relay Satellite 1, 13969
Nominal Power 1700.0W
Additional Information Here
PDMP Information Here
Telecommunications Information Here


The Tracking and Data Relay Satellite System (TDRSS) was a concept utilizing communication satellite technology to improve and economize the satellite tracking and telemetry operation. Three geosynchronous satellites (one a standby) will track and receive data from satellites for relay to a ground station. The two active satellites will be separated in orbit by at least 130-deg longitude. Spacecraft serviced by TDRSS will require only one communications system since ground-based telemetry stations will be compatible with TDRSS equipment. TDRSS was intended to support satellite with apogee below 12,000 km. One system will be used for satellites with apogee below 2000 km (the great majority of satellites), and another for those with higher apogee. Use of operating frequencies near 2150 (plus or minus 150) MHz and near 14.3 (plus or minus 0.9) GHz were anticipated.