Some Methodical Problems of Low-Thrust Trajectory Optimization

The purpose of this investigation was to consider some theoretical problems of the low-thrust trajectory optimization, to develop new efficiency numerical methods of trajectory optimization. The following problems are discussed: optimization of the solar-nuclear propulsion mission within power-limited problem; optimal junction of the high- and low-thrust trajectory arcs; one numerical method to determine optimal power-limited trajectories; low-thrust trajectory optimization using continuation with respect to gravity parameter; method of calculation for rendezvous trajectories to asteroids and comets; analysis of low thrust spacecraft's mass characteristics; method for calculation of step-like low-thrust optimal trajectories.