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Name: ETRS89-FRA [RGF93 v1] to ETRS89-FRA [RGF93 v2] (1)
Method: Geocentric translations (geog2D domain)
Remarks: Maximum differences are 0.1m in both horizontal and vertical. Distortions in ETRS89-FRA [RGF93 v1] are irregular and IGN considers that no systematic transformation to the improved v2 adjustment is possible.
Information source: IOGP
Revision date: 2025-10-31
Unit: degree
Geodetic CRS: ETRS89-FRA [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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