A SURVEY OF OBERON MEAN MOTION RESONANT UNSTABLE ORBIT PROPERTIES AND CONNECTIONS FOR URANIAN TOURS

Heteroclinics between mean motion resonant orbits yield propellant-free changes of semima- jor axis, and are important for outer planet tour design. While resonances have been studied for many Jovian and Saturnian moons, similar analyses for the Uranus system are lacking. In this study, we characterize resonant orbits for Uranus’ outermost large moon, Oberon. We first compute various such orbits and their stable/unstable manifolds in the Uranus-Oberon planar circular restricted 3-body problem, demonstrating connections between resonances varying with energy level. Then, given Titania’s proximity to many Oberon mean motion resonances, we study Oberon resonant orbits in a restricted 4-body model including Titania, finding secondary resonant phenomena.