Before revision: Geocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude : where and are, respectively, the equatorial radius and the polar radius.
After revision: , given by the formulaGeocentric radius The geocentric radius is the distance from the Earth's center to a point on the spheroid surface at geodetic latitude : where and are, respectively, the equatorial radius and the polar radius.