How long can a cislunar object go unobserved before ground telescopes lose it? Custody horizons for angles-only tracking of NRHO, halo, Lyapunov and DRO orbits — CR3BP + JPL DE440, EKF/UKF/GM-UKF/particle filters, Monte Carlo.
python astrodynamics scientific-computing particle-filter unscented-kalman-filter state-estimation uncertainty-propagation kalman-filter space-situational-awareness orbit-determination three-body-problem cr3bp nrho jpl-ephemeris cislunar space-domain-awareness halo-orbit gaussian-mixture-filter
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Updated
Oct 23, 2026 - Python