JOVIAN TOUR DESIGN FOR ORBITER AND LANDER MISSIONS TO EUROPA

摘要

Europa is one of the most interesting targets for solar system exploration, as its ocean of liquid water could harbor life. Following the recommendation of the Planetary Decadal Survey, NASA commissioned a study for a flyby mission, an orbiter mission, and a lander mission. This paper presents the moon tours for the lander and orbiter concepts. The total △_v and radiation dose would be reduced by exploiting multi-body dynamics and avoiding phasing loops in the Ganymede-to-Europa transfer. Tour 11-O3, 12-L1 and 12-L4 are presented in details and their performances compared to other tours from previous Europa mission studies.