Relativistic perturbations on the motion and tracking of the LAGEOS satellite
Abstract
The modifications to Geodyn to substitute the Einstein gravitational theory for Newtonian gravitation are described. This results in modifications to both the satellite equations of motion and to the modeling of satellite tracking measurements. Since the Newtonian theory is a very close approximation to the Einstein theory (or general theory of relativity), observable deviations from Newtonian theory are small, and the applicable equations of motion or observation equations can be formulated so that they differ only by small terms which are denoted as relativistic perturbations. In the implementation of the Einstein theory in an orbital data reduction program, station coordinates and satellite coordinates which resemble the normal Cartesian coordinates are considered.
 Publication:

Final Report EG and G Washington Analytical Services Center
 Pub Date:
 June 1982
 Bibcode:
 1982wasc.rept.....M
 Keywords:

 Laser Range Finders;
 Newton Theory;
 Relativistic Theory;
 Satellite Tracking;
 Cartesian Coordinates;
 Equations Of Motion;
 Lageos (Satellite);
 Satellite Perturbation;
 Launch Vehicles and Space Vehicles