abstract:Geocentric coordinates are an Earth-centered system of locating objects in the solar system in three-dimensions along the Cartesian X, Y and Z axes. They are differentiated from topocentric coordinates which use the observer's location as the reference point for bearings in altitude and azimuth.
At present, there iscertainlocalizationinsome formulae oftransformation from geocentriccoordinatestogeodeticcoordinates, such as rateofcalculation, stability, orprecision.