The control segment consists of monitoring stations which monitor the
signals and track the positions of the satellites over time. The initial GPS
monitoring stations are at Colorado Springs, and on the islands of Hawaii,
Ascension, Diego Garcia, and Kwajalein. The tracking information is relayed
to the master control station in the Consolidated Space Operations Center
(CSOC) located at Schriever Air Force base in Colorado Springs. The master
control station uses this data to make precise, near-future predictions of the
satellite orbits, and their clock correction parameters. This information is uploaded
to the satellites, and in turn, transmitted by them as part of their
broadcast message to be used by receivers to predict satellite positions and
their clock biases (systematic errors).
The control segment consists of monitoring stations which monitor thesignals and track the positions of the satellites over time. The initial GPSmonitoring stations are at Colorado Springs, and on the islands of Hawaii,Ascension, Diego Garcia, and Kwajalein. The tracking information is relayedto the master control station in the Consolidated Space Operations Center(CSOC) located at Schriever Air Force base in Colorado Springs. The mastercontrol station uses this data to make precise, near-future predictions of thesatellite orbits, and their clock correction parameters. This information is uploadedto the satellites, and in turn, transmitted by them as part of theirbroadcast message to be used by receivers to predict satellite positions andtheir clock biases (systematic errors).
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