Four continuous relaxations turn non-differentiable coverage and revisit calculations into a fully differentiable pipeline that optimizes satellite orbits via gradients and outperforms metaheuristics.
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Large-scale empirical test on 24,641 Starlink TLE pairs shows SGP4 matches or beats high-fidelity propagation for position accuracy out to 7 days, with median errors reaching tens of kilometers.
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Differentiable Satellite Constellation Configuration via Relaxed Coverage and Revisit Objectives
Four continuous relaxations turn non-differentiable coverage and revisit calculations into a fully differentiable pipeline that optimizes satellite orbits via gradients and outperforms metaheuristics.