Trajectory optimization of flybys of multiple irregular satellites of Jupiter with Galilean moons gravity assist

IF 1.8 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS
Quan Jing, Zhixin Hao, Mingtao Li
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Abstract

The irregular satellites within the Jupiter system hold high scientific value due to their potential to contain clues about the early evolution of the solar system. This paper proposes an optimization algorithm for multiple irregular satellites flyby trajectories, which includes the powered gravity assist from Galilean moons. The algorithm is based on beam search and uses virtual trajectories to determine potential flyby targets, solving for trajectories that satisfy constraints on velocity increment, mission duration, and perijove radius. By changing the initial orbital period and optimizing the number of branches with Galilean moon gravity assist during branching, and comparing with the case without Galilean moon gravity assist, the effects of these factors on the number of irregular satellite flybys are summarized. The simulation results show that the algorithm can effectively solve for orbits that flyby multiple irregular satellites for initial orbits of different periods. The three trajectories obtained can serve as references for future missions.

Abstract Image

Abstract Image

利用伽利略卫星的重力辅助优化飞越木星多颗不规则卫星的轨迹
木星系统中的不规则卫星具有很高的科学价值,因为它们可能包含太阳系早期演化的线索。本文提出了一种多颗不规则卫星飞越轨迹的优化算法,其中包括伽利略卫星的动力重力辅助。该算法基于波束搜索,使用虚拟轨迹来确定潜在的飞越目标,求解满足速度增量、任务持续时间和周边半径等约束条件的轨迹。通过改变初始轨道周期和优化分支期间有伽利略卫星引力辅助的分支数量,并与无伽利略卫星引力辅助的情况进行比较,总结了这些因素对不规则卫星飞越次数的影响。仿真结果表明,该算法能有效求解不同周期初始轨道飞越多颗不规则卫星的轨道。所获得的三条轨道可作为未来飞行任务的参考。
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来源期刊
Astrophysics and Space Science
Astrophysics and Space Science 地学天文-天文与天体物理
CiteScore
3.40
自引率
5.30%
发文量
106
审稿时长
2-4 weeks
期刊介绍: Astrophysics and Space Science publishes original contributions and invited reviews covering the entire range of astronomy, astrophysics, astrophysical cosmology, planetary and space science and the astrophysical aspects of astrobiology. This includes both observational and theoretical research, the techniques of astronomical instrumentation and data analysis and astronomical space instrumentation. We particularly welcome papers in the general fields of high-energy astrophysics, astrophysical and astrochemical studies of the interstellar medium including star formation, planetary astrophysics, the formation and evolution of galaxies and the evolution of large scale structure in the Universe. Papers in mathematical physics or in general relativity which do not establish clear astrophysical applications will no longer be considered. The journal also publishes topically selected special issues in research fields of particular scientific interest. These consist of both invited reviews and original research papers. Conference proceedings will not be considered. All papers published in the journal are subject to thorough and strict peer-reviewing. Astrophysics and Space Science features short publication times after acceptance and colour printing free of charge.
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