1st ACT Global Trajectory Optimisation Competition: Results found at Moscow Aviation Institute and Khrunichev State Research and Production Space Center

We discuss the general requirements for the solution of the problem given in the 1st ACT Global Trajectory Optimization Competition. We introduce some novel numerical methods used for multiple gravity-assist and low-thrust trajectory optimization, and in particular an original method to compute interplanetary conic trajectories and a novel continuation technique for low-thrust trajectory optimization. The application of these methods to the competition problem is discussed. The final trajectory has an objective function value of J=1364042.86kgkm2/s2. It includes five swingbys in the inner Solar system and three thrusting arcs. An optimal direct Earth–asteroid trajectory is presented as a post-competition result.