Planetary surface coordinate calculator. CoordinatesX is an application that transforms geodetic and Cartesian coordinates. It will make the conversions from Geodetic latitude, longitude and heights to planet centered Cartesian coordinates and vice versa. Works for various planetary ellipsoids, including user defined ellipsoids. Additionally, CoordinatesX will also compute long geodesic lines on the ellipsoid. Given a starting latitude and longitude, a distance and a direction, CoordinatesX will compute the location of the end point. Also, it will compute the geodesic length and directions between two points of known latitude and longitude. Baseline lengths and ellipsoidal chord length computation are possible too.