Derivation Of Equations For Converting From Geodetic Coordinates To Geocentric Coordinates

摘要

In the A.P.L. orbit computation programs, the TRADET Tracking Stations are specified in a geocentric coordinate system, whereas, particular positions (such as a TRANET Tracking Site) over the Earth are expressed initially in a geodetic coordinate system. In order to acquire geocentric coordinates from a given set of geodetic coordinates a set of transformation equations were derived.