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Method: NTv2
Grid Files: rgf93_ntf.gsb
Remarks: Emulation using NTv2 method of NTF to RGF93 v1 (1), code 9327. Note that grid file parameters are of opposite sign. May be taken as approximate CT to ETRS89 or WGS 84 (see codes 15959 and 15960). Also used to transform later realizations of RGF93 to NTF.
Information source: ESRI
Revision date: 2022-01-24
Unit: degree
Geodetic CRS: RGF93 v1
Datum: Reseau Geodesique Francais 1993 v1
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: OGP
Revision date: 2002-11-22
Scope: Geodesy.
Remarks: See CRS code 4171 for recommended coordinate axis representation for the human interface.
Area of use: France - onshore and offshore, mainland and Corsica (France métropolitaine including Corsica).
Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg
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