OPTIMAL LOW-COST TRANSFER TO L4 AND L5 LAGRANGIAN POINTS BASED ON G-FAMILY OF PERIODIC ORBITS

摘要

An alternative transfer strategy to send spacecrafts to stable orbits around the Lagrangian equilibrium points L4 andL5 based in trajectories derived from the periodic orbits around L1 is presented in this work. The trajectories derived,called Trajectories G, are described and studied in terms of the initial generation requirements and their energyvariations relative to the Earth through the passage by the lunar sphere of influence. Missions for insertion ofspacecrafts in elliptic orbits around L4 and L5 are analysed considering the Restricted Three-Body Problem Earth-Moon-particle and the results are discussed starting from the thrust, time of flight and energy variation relative to theEarth.