Derived at IGN monument CFP19 using Transit. Can be implemented as a single 7-param Position Vector transformation with parameter values of dX=-156.5m dY=-87.2m dZ=+287.8m; rX=rY=0 rZ=+0.814sec; dS=-0.38ppm.
2020-03-14
Geodesy.
See CRS code 4307 for recommended coordinate axis representation for the human interface.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: dec deg