1983 wurde der erste TDR-Satellit (TDRS-1) in Betrieb genommen, und im September 1988 startete TDRS-3 und formte das erste Tracking and Data Relay Satellite System. Data can flow through NISN two ways: using the Internet Protocol Operational Network (IPONET) or the High Data Rate System (HDRS). For this reason all segments have redundancy factored in. The telecommunications payload relays signals to and from the ground station or to and from user satellites. "Die Übertragungssysteme der TDRS-Satelliten wurden für die gleichzeitige Übertragung mehrerer Datenströme entwickelt. This part of the STDN consists of infrastructure and computers dedicated to monitor network traffic flow, such as fiber optic links, routers and switches. The NCC was originally located at Goddard Space-flight Center, in Greenbelt, Maryland until 2000, when it was relocated to the WSC. As many functions as possible have been … "In October 2008, the NRO declassified the existence of mission ground stations in the US called Aerospace Data Facility (ADF)- Colorado, ADF-East and ADF-Southwest near The first seven TDRSS satellites were built by the Note: while a TDRSS satellite is in the manufacturing process it is given a letter designation, but once it has successfully achieved the correct geosynchronous orbit it is referred to with a number (for example, TDRS-A during development and before on-orbit acceptance, and TDRS-1 after acceptance on orbit and put into operational use).
Die Tracking and Data Relay Satellites (TDRS) (englisch für Kursverfolgungs- und Datenrelaissatelliten) bilden ein Netzwerk von Kommunikationssatelliten, das von der NASA und anderen US-Regierungsbehörden für die Kommunikation zu Satelliten, zum Space Shuttle und zur Internationalen Raumstationgenutzt wird. Service control and assurance supports functions of real-time usage, such as receipt, validation, display and dissemination of TDRSS performance data. The original TDRSS design had two primary satellites, designated TDE, for The user segment of TDRSS includes many of NASA's most prominent programs. The most recent generation of satellites provides ground reception rates of 6 Mbit/s in the To satisfy the requirement for long-duration, highly-available space-to-ground communications, NASA created the A side-by-side network established right after STADAN in the early 1960s, called the Even after consolidation, STDN had some drawbacks. Das System wurde entwickelt, um das existierende Netzwerk aus Bodenstationen zu ersetzen, das alle bemannten Missionen der NASA bis dahin unterstützt hatte. In order to maintain a high-reliability rate coupled with higher data transfer speeds, NASA began a studyThe space segment of the new system would rely upon satellites in geostationary orbit. It will schedule requests for support, monitor spacecraft performance and upload control information to the spacecraft (through TDRSS).