Integrated strategy of stationkeeping, autonomous navigation, and real-time geodetical recovery of gravity fields: application into asteroid Lutetia mission

An integrated strategy is proposed for asteroid orbiting, consisting of stationkeeping, autonomous navigation, and real-time geodetical recovery. It is designed to maintain the spacecraft on its nominal trajectory under some uncertainties from the spacecraft and the asteroid. Furthermore, it performs adaptive estimations on the mass and thruster of spacecraft, as well as the spherical harmonic coefficients and spin rate of the gravity field of...