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California Spatial Reference Center
CSRC How-To
ITRF 2000   The International Terrestrial Reference Frame of 2000 (ITRF 2000) is now used as the official reference frame for CSRC and NGS GPS satellite orbits. Read here for more information.

SCIGN monument information   A description of GPS monuments used in the Southern California Integrated GPS Network, including various technical information.

RINEX Format   is the standard used by GPS data observation files. This is a link to the Crustal Dynamics Data Information System (CDDIS) ftp page describing this format.

GPS Receiver Utilities   A listing of available software for downloading and translating raw GPS receiver files.


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