Optimization of the Lucy Interplanetary Trajectory via Two-Point Direct Shooting

[摘要] Lucy is NASA’s next Discovery-class mission and will explore the Trojan asteroids in the Sun-Jupiter L4 and L5 regions. This paper details the design of Lucy’s interplanetary trajectory using a two-point direct shooting transcription, nonlinear programming, and monotonic basin hopping. These techniques are implemented in the Evolutionary Mission Trajectory Generator (EMTG), a trajectory optimization tool developed at NASA Goddard Space Flight Center. We present applications to the baseline trajectory design, Monte Carlo analysis, and operations.

[发布日期] 2019-08-11

[学科分类] 天文学(综合)

[关键词] DESIGN ANALYSIS;INTERPLANETARY TRAJECTORIES;MONTE CARLO METHOD;SUN;TRAJECTORY ANALYSIS;SWINGBY TECHNIQUE;SPACECRAFT DESIGN