Planetary orbit insertion maneuver is one of the most critical events in deep space exploration missions. Once the spacecraft fails to decelerate enough to stay in the planetary orbit, it escapes from the vicinity of the planet. In some cases, such as the Akatsuki mission of Japan Aerospace Exploration Agency (JAXA), a feasible recovery trajectory was found after an engine malfunction; however, in many cases, the mission may fail because the spacecraft will end its mission life before reencountering the planet. To mitigate the risk, researchers have studied robust orbit insertion strategies, which reduce the total probabilistic by sacrificing nominal and shorten the flight time to reencounter the planet. Previous studies consider the possibility that planetary orbit insertion fails completely and use resonant trajectories as the recovery trajectories. This paper extends the robust orbit insertion method by implementing V-infinity leveraging transfers as the recovery trajectories. This extension enables to treat general probability models that describe the partial failures of orbit insertion maneuvers. The numerical example of JAXA’s Martian Moons Exploration mission shows that the proposed method enhances performance, namely, the expected and , as well as robustness.
Extended Robust Planetary Orbit Insertion Method Under Probabilistic Uncertainties
Journal of Spacecraft and Rockets ; 57 , 6 ; 1153-1164
2020-09-30
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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