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Method: NTv2
Grid Files: D73_ETRS89_geo.gsb
Remarks: Derived from 1129 common stations in the national geodetic network. Residuals at 130 further test points average 0.06m, maximum 0.16m.
Information source: Instituto Geografico Portugues; http://www.igeo.pt
Revision date: 2020-03-14
Unit: degree
Geodetic CRS: Datum 73
Datum: Datum 73
Ellipsoid: International 1924
Prime meridian: Greenwich
Data source: EPSG
Information source: OGP
Revision date: 2002-11-22
Scope: Geodesy.
Remarks: See CRS code 4274 for recommended coordinate axis representation for the human interface.
Area of use: Portugal - mainland - onshore.
Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg
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