Robust Real-Time Orbit Determination After GNSS Outages via Uncertainty-Aware Predicted-Orbit Constraints
Accurate and continuous onboard real-time orbit determination (RTOD) is essential for Low Earth Orbit (LEO) satellites, but temporary interruptions of onboard Global Navigation Satellite Systems (GNSS) observations can degrade orbit continuity and delay filter re-convergence. Although predicted-orbit constraints can ac...