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INITIAL ORBIT DETERMINATION , DATA ASSOCIATION , AND ADMISSIBLE REGIONS OF SPACE OBJECTS USING MAGNETOMETERS

Magnetometer-based detection and characterization of space objects is motivated and challenges are discussed. Observable constants of motion with and without charge screening are derived in detail. Batch filtering methods are proposed to estimate the observable space object states. A novel application of orbit and detection constraints is used to generate admissible region boundaries for unobservable states, allowing initial orbit determination and data association of space objects passing near magnetometers. Practical and operational issues are discussed, followed by suggested future research activities.