A new concept of real time improvement of atmospheric mass density models and its validation using CHAMP GPS-derived precision orbit data

This paper proposes a new concept of real-time improvement of atmospheric mass density models (AMDM) using space tracking data aiming at better orbit prediction accuracy for low latitude earth-orbiting (LEO) space objects. Preliminary experiments using CHAMP GPS-derived precise orbit solution data have demonstrated extremely encouraging and promising results in the error reductions of orbit reduction for 3 days. This suggests that an order of error reduction is achievable by proper fine-tuning of the algorithms.