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arXiv 2307.09657astro-ph.EP
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等质量小行星双星系统附近航天器动力学分析

Analysis of the dynamics of a spacecraft in the vicinity of an asteroid binary system with equal masses

L. B. T. Santos, P. A. Sousa-Silva, M. O. Terra, S. Aljbaae, D. M. Sanchez, A. F. B. A. Prado, G. M. Oliveira, F. Monteiro, A. K. de Almeida, N. B. Lima, N. B. D Lima

AI总结:

本研究针对等质量双小行星系统(以2017 YE5为例),利用圆形限制性三体问题分析航天器动力学,发现周期轨道并评估其稳定性及太阳辐射压影响,最终计算了拉格朗日点间的最优双冲量转移。

摘要:

在本工作中,我们对一颗近地双小行星系统(两成员质量近乎相等)周围的航天器进行了动力学分析,并将其应用于小行星2017 YE5,该小行星也可能是一颗休眠的木星族彗星。因此,我们利用圆形限制性三体问题研究了粒子在该双星系统周围的运动。我们计算了该系统的拉格朗日点位置及其雅可比常数。通过数值模拟,利用庞加莱截面,我们发现了围绕每个双星系统主天体的多个顺行和逆行周期轨道,其中一些表现出显著的高阶行为。我们还计算了这些轨道的稳定性。在找到周期轨道后,我们研究了太阳辐射压对这些轨道的影响。在此分析中,我们考虑了面积质量比等于0.01和0.1的情况。我们还根据2017 YE5系统的物理和轨道特征进行了航天器寿命分析,并研究了航天器在该系统附近的行为。我们分析了不同雅可比常数值下的顺行和逆行轨道。本研究调查了至少存活六个月的轨道,在此期间不碰撞或逃离系统。我们还分析了导致航天器与M1或M2碰撞或逃离系统的初始条件。在本工作中,我们考虑了双小行星系统的引力和太阳辐射压(SRP)。最后,我们计算了共线拉格朗日点之间的最优双冲量轨道机动。我们发现了考虑飞行时间在0.1天到1天之间的一系列可能的轨道转移。

英文摘要:

In this work, we performed a dynamical analysis of a spacecraft around a nearly equal-mass binary near-Earth asteroid with application to the asteroid 2017 YE5, which is also a possible dormant Jupiter-family comet. Thus, we investigated the motion of a particle around this binary system using the circular restricted three-body problem. We calculated the locations of the Lagrangian points of the system and their Jacobi constant. Through numerical simulations, using the Poincaré Surface of Sections, it was possible to find several prograde and retrograde periodic orbits around each binary system's primary, some exhibiting significantly-sized higher-order behavior. We also calculated the stability of these orbits. After finding the periodic orbits, we investigated the influence of solar radiation pressure on these orbits. For this analysis, we considered that the area-to-mass ratio equals 0.01 and 0.1. We also performed a spacecraft lifetime analysis considering the physical and orbital characteristics of the 2017YE5 system and investigated the behavior of a spacecraft in the vicinity of this system. We analyzed direct and retrograde orbits for different values of Jacobi's constant. This study investigated orbits that survive for at least six months, not colliding or escaping the system during that time. We also analyze the initial conditions that cause the spacecraft to collide with $M_1$ or $M_2$, or escape from the system. In this work, we take into account the gravitational forces of the binary asteroid system and the solar radiation pressure (SRP). Finally, we calculated optimal bi-impulsive orbital maneuvers between the collinear Lagrangian points. We found a family of possible orbital transfers considering times of flight between 0.1 and 1 day.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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