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The top documents tagged [ellipsoid geoid slide]
Session 4 Global Positioning System (GPS). Feasibility studies began in the 1960’s. Pentagon appropriated funding in 1973. First satellite launched
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Using GPS with Maps. GPS’ Own Internal System GPS Ellipsoid: GRS-80 (Geodetic Reference System 1980) GPS Datum: WGS-84 (World Geodetic System 1984) (equivalent
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