ABSTRACT
One of the main stages in multi-purpose mission analysis is the selection of the optimal trajectory and the formation of multi-purpose mission schemes. This chapter presents a universal algorithm for generating complex multi-purpose trajectories; the algorithm is intended to enable the study of promising trajectories of spacecraft in the solar system in more detail. It allows one to generate the optimal multi-purpose trajectory for the selected spacecraft mission, to create a calendar of flights using the selected trajectory, and to determine the most expedient windows for the spacecraft launch. A model is also provided for the algorithm to form optimal paths given the number and classes of celestial bodies affecting the spacecraft trajectory. The chapter suggests that the graphic-analytical method for examining orbits with a gravity assist maneuver can be applied to approximately analyze the different problems facing the space flight, and in particular to analyze the interorbital transfers in the central gravitation field.
