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Study on Stationkeeping for Halo Orbits at EL₁: Dynamics Modeling and Controller Designing

Xu, Ming; Xu, Shijie

This paper deals with the stationkeeping control for halo orbits at EL₁ in the Sun-Earth/Moon system, and proposes an effective adaptive robust controller for the unknown spacecraft mass and perturbation boundaries. The controller has to deal with two divergence sources: one is the instability of the halo orbit, and the other is the per…