Parameter

WGS84

GRS80

Semi-major axis of the spheroid (a)

6,378,137.0000 m

6,378,137.0000 m

Semi-minor axis of the spheroid (b)

6,356,752.3142 m

6,356,752.3141 m

Flattening of the spheroid (f)

1/298.257223563

1/298.257222101