Dynamical Model of Rotation and Orbital Coupling for Deimos

doi:10.3390/rs16071174

	Dynamical Model of Rotation and Orbital Coupling for Deimos
	Huang K(黄凯)4,5; Zhang LJ(张利军)4,5; Yang YZ(杨永章)3,5; Ye, Mao 2; Li YQ(李语强)1,5
刊名	REMOTE SENSING
	2024-04
卷号	16 期号:7
关键词	celestial mechanics Deimos rotation dynamical model adjustment model numerical integration ephemerides
DOI	10.3390/rs16071174
产权排序	第1完成单位
文献子类	Article
英文摘要	This paper introduces a novel dynamical model, building upon the existing dynamical model for Deimos in the current numerical ephemerides, which only encompasses the simple libration effects of Deimos. The study comprehensively incorporates the rotational dynamics of Deimos influenced by the torque exerted by the major celestial bodies (Mars, the Sun) in the solar system within the inertial space. Consequently, a full dynamical model is formulated to account for the complete coupling between the rotation and orbit of Deimos. Simultaneously, employing precision orbit determination methods used for artificial satellites, we develop an adjustment model for fitting data to the complete model. The 12-order Adams-Bashforth-Moulton (ABM) integration algorithm is employed to synchronously integrate the 12 state variables of the full model to obtain the orbit of Deimos.The difference in the orbits obtained by integrating the full model over a period of 10 years and those obtained by the simplified model is at the order of 10 km. After precise orbit determination, this difference decreases to below 100 m, so numerical simulation results indicate that the full dynamical model and adjustment model are stable and reliable. Simultaneously, the integration of the Deimos third-order gravity field in the full model over a 10-year period induces only meter-level positional changes. This suggests that when constructing the complete model, the utilization of a second-order gravity field alone is sufficient. Compared to the simple model, the polar axis of Deimos in the inertial space exhibits a more complex oscillation in the full model. Additionally, the full model calculates that the minimum moment of inertia principal axis of Phobos has an amplitude of approximately 0.5 degrees in the longitude direction and does not exceed 2 degrees in the latitude direction. This work further advances the current dynamical model for Deimos and establishes the foundational model for the generation of a new set of precise numerical ephemerides for Deimos.
学科主题	天文学 ; 天文学:天体测量学
URL标识	查看原文
出版地	ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND
资助项目	National Natural Science Foundation of China
WOS关键词	MARTIAN SATELLITES ; MOTION ; ESAPHO ; EPHEMERIDES ; LIBRATION ; MARS
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	MDPI
WOS记录号	WOS:001200882600001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/27051]
专题	云南天文台_应用天文研究组
作者单位	1.Key Laboratory of Space Object and Debris Observation, PMO, CAS, Nanjing 210023, China 2.State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China; 3.Project Supported by MOE Key Laboratory of TianQin Project, Sun Yat-sen University, Zhuhai 519082, China; 4.University of Chinese Academy of Sciences, Beijing 100049, China; 5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China;
推荐引用方式 GB/T 7714	Huang K,Zhang LJ,Yang YZ,et al. Dynamical Model of Rotation and Orbital Coupling for Deimos[J]. REMOTE SENSING,2024,16(7).
APA	黄凯,张利军,杨永章,Ye, Mao,&李语强.(2024).Dynamical Model of Rotation and Orbital Coupling for Deimos.REMOTE SENSING,16(7).
MLA	黄凯,et al."Dynamical Model of Rotation and Orbital Coupling for Deimos".REMOTE SENSING 16.7(2024).