Searching for two optimal trajectories: A study on different approaches to global optimization of gravity-assist trajectories that have a backup departure opportunity

In interplanetary space missions, it is convenient to have a second departure opportunity in case the first is missed. Two distinct approaches to minimizing the maximum of the two Delta-V budgets of such a trajectory pair, are developed. The first (‘a priori’) approach optimizes the variables of both trajectories at once. The second (‘a...

Optimization of Space Trajectories Including Multiple Gravity Assists and Deep Space Maneuvers

The optimization of high-thrust interplanetary trajectories continues to draw attention. Especially when both Multiple Gravity Assists (MGA) as well as Deep Space Maneuvers (DSMs) are included, the optimization is typically very difficult. The search space may be characterized by a large number of minima and is furthermore very sensitive to...

Trajectory optimization for a mission to Neptune and Triton