TDRS

Tracking & Data Relay Satellite

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American telecommunication program operated by NASA. Some TDRS satellites have got a so called commercial payload, operated by Columbia Communications (C-band). Provides communications, tracking, telemetry, data acquisition and command services essential to Shuttle and low-Earth orbital spacecraft missions. The TDRS system can provide communications services to orbital spacecraft over 85 percent of each orbit for most satellites, and continuous service for some orbital positions.

The TDRS system was initiated following studies in the early 1970s which showed that a system of telecommunications satellites, operated from a single ground station, could meet the needs of NASA's mission better and more cost-effectively than the then existing network of tracking and communications ground stations located around the world.

In addition to the Shuttle, TDRS customers include GRO, UARS, HST, ERBS, EUVE, Topex Poseidon, XTE and other military missions. Future clients include: ISS, TRMM, Landsat 7, EOS Retired missions: Landsat 4, Landsat 5, SMM, COBE, SME

TDRS control center is in White Sands, New Mexico.

Commercial telecommunication services (C-band) are available via Columbia through 31 Dec 2001 (option to extend TDRS 5 & 6 through 2003)

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ASTRA A to Z

ASTRA Program | ASTRA Home Page | Waverider Home Page | X-Craft

 

Hyper-X (Part One) | Hyper-X (Part Two) | Across the Pond

Oshkosh Air Show | Some reflections (Part One) | Some reflections (Part Two)

TDRS | Hypersonic Flexwings | Intelligent Test Aircraft

Mayday | HOTOL | SR-71 | Alpha Station

Website Author: Nick Portwin (portwin@easynet.co.uk)

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Date Last Modified: 31 07 1999