On the dynamics of a probe in the vicinity of a binary asteroid

IF 2.8 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Advances in Space Research Pub Date : 2025-05-19 DOI:10.1016/j.asr.2025.05.047

Marco Cinelli , Emiliano Ortore , Hanlun Lei , Christian Circi

引用次数: 0

Abstract

This paper investigates the dynamics of a probe orbiting an oblate celestial body (primary) and affected by a perturbing body that is positioned on the equatorial plane of the primary. The perturbing body describes an orbit around the primary that is inner with respect to that of the probe, as often occurs in proximity to a binary asteroid. Accordingly, in the present study, the mathematics is applied to a probe moving in the vicinity of two celestial bodies having the same characteristics as the Binary Asteroid (65803), composed of Didymos and Dimorphos (secondary asteroid). In such a dynamical model, the inner disturbing potential related to the secondary asteroid is approximated up to the hexadecapole order and double-averaged to obtain the long-term equations for the motion of the probe. Then, the difference between the long-term dynamics and the non-averaged dynamics of the probe is evaluated, considering the influence coming from the oblateness of the primary asteroid on both the probe and the secondary.

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在双星小行星附近的探测器动力学

本文研究了一个绕扁天体（主天体）运行的探测器在其赤道面上受扰动体影响时的动力学特性。扰动体描述的是围绕主星的轨道，相对于探测器的轨道而言，这是一个内部的轨道，通常发生在靠近双星小行星的地方。因此，在本研究中，将数学应用于在两个天体附近运动的探测器，这些天体与双小行星（65803）具有相同的特征，由Didymos和Dimorphos（次级小行星）组成。在该动力学模型中，将与副小行星有关的内部扰动势近似至六进阶，并进行双平均，得到探测器运动的长期方程。然后，考虑主小行星扁率对探测器和次小行星的影响，评估了探测器长期动力学和非平均动力学的差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Space Research 地学天文-地球科学综合

CiteScore

5.20

自引率

11.50%

发文量

800

审稿时长

5.8 months

期刊介绍： The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.