Orbital operations for Phobos and Deimos exploration
2012
One of the deep-space human exploration activities proposed for the post-Shuttle era is a mission to one of the moons of Mars: Phobos or Deimos. There are several options available to the mission architect for operations around these bodies. These options include distant retrograde orbits (DROs), Lagrange-point orbits such as halos and Lyapunov orbits, and fixed-point station keeping or “hovering.” These three orbit options are discussed in the context of the idealized circular restricted three body problem, full-dynamics propagations, and a concept of operations. The discussion is focused on Phobos, but all results hold for Deimos.
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