View source for World Geodetic System 1984

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{{CyberTerm|definition=An Earth-centered, Earth-fixed terrestrial reference system and geodetic datum. WGS 84 is based on a consistent set of constants and model parameters that describe the Earth’s size, shape, gravity, and geomagnetic fields. WGS 84 is the standard U.S. Department of Defense definition of a global reference system for geospatial information and is the reference system for GPS. It is consistent with the International Terrestrial Reference System (ITRS).|source=NISTIR 8323}}