Geodetic reference system

SWEREF99 The Stone of Million World Geodetic System 1984 State Geodetic Administration ED50 European Terrestrial Reference System 1989 Irish grid reference system Irish Transverse Mercator Web Mercator Baltic Sea vertical datum World Geodetic System Geocentric Datum of Australia 1994 Datum Austria Boyer–Lindquist coordinates Swiss coordinate system Rome40 Hellenic Geodetic Reference System 1987 initial point International Terrestrial Reference System vertical datum North American Datum North American Datum