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

Englander, Jacob A ; Ellison, Donald H ; Englander, Jacob A ; Ellison, Donald H ; Williams, Ken ; McAdams, James ; Knittel, Jeremy M ; Sutter, Brian ; Welch, Chelsea ; Stanbridge, Dale(KinetX Aerospace, Inc, Simi Valley, CA, United States)

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

RP-ID  :  AAS 19-663,GSFC-E-DAA-TN71085

学科分类：天文学(综合)

美国|英语

来源: NASA Technical Reports Server

【 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.