| 天问一号环绕器中继轨道受摄共振特性分析 |
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| 引用本文： | 朱新波,李海洋,郑惠欣,徐亮.天问一号环绕器中继轨道受摄共振特性分析[J].宇航学报,2022,43(8):1019-1028. |
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| 作者姓名： | 朱新波 李海洋 郑惠欣 徐亮 |
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| 作者单位： | 1. 南京航空航天大学航天学院,南京 211106；2. 上海卫星工程研究所,上海 201109；3. 上海市深空探测技术重点实验室,上海 201109 |
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| 基金项目： | 上海市青年科技英才扬帆计划(21YF1446100)；国家自然科学基金青年基金(12102265)；上海市科委科研计划项目(18DZ2272300) |
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| 摘 要： | “天问一号”环绕器在环火中继轨道为“祝融”火星车提供中继服务时,星下点出现了过着陆点纬度时的经度先增大再减小的特殊漂移现象,需要对该现象产生的原因进行深入分析。基于摄动理论设计了一系列数值实验,提出了一种星下点过指定纬度时经度的简化计算方法；并结合对田谐项引力场位函数的解析推导发现,由于中继轨道周期与火星自转周期比接近1:3,导致3阶3次田谐项产生了轨道共振,从而使得半长轴长周期运动有着较为显著的振荡,进而与带谐项摄动联合导致了该特殊现象。研究揭示了“天问一号”环绕器的轨道共振现象,发现了高阶田谐项对非同步轨道上的环火卫星仍能产生较为明显的轨道共振现象。研究结果可为后续火星环绕探测任务轨道设计提供重要参考。
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| 关 键 词： | 火星环绕器 中继轨道 星下点漂移 田谐项摄动 轨道共振 |
| 收稿时间： | 2021-11-12 |
Analysis of Perturbed Resonance Characteristic of Tianwen-1 Orbiter ’s Relay Orbit |
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| ZHU Xinbo,LI Haiyang,ZHENG Huixin,XU Liang.Analysis of Perturbed Resonance Characteristic of Tianwen-1 Orbiter ’s Relay Orbit[J].Journal of Astronautics,2022,43(8):1019-1028. |
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| Authors: | ZHU Xinbo LI Haiyang ZHENG Huixin XU Liang |
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| Affiliation: | 1. College of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;2. Shanghai Institute of Satellite Engineering, Shanghai 201109, China;3. Shanghai Key Laboratory of Deep Space Exploration Technology, Shanghai 201109, China |
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| Abstract: | When the Tianwen-1 orbiter provided relay services for the Zhurong rover in the Mars relay orbit, a special drift phenomenon of longitude increasing first and then decreasing while the sub satellite point crossing the latitude of the landing site was found. The causes of this phenomenon are deeply analyzed. Based on the perturbation theory, a series of numerical experiments are designed, and a simplified method for calculating longitude when the sub satellite point crosses a specified latitude is proposed. Combined with the analytic derivation of the gravitational field potential function of the tesseral harmonic term, it is found that the ratio of the relay orbital period to the Mars rotation period is close to 1 ∶3, resulting in the orbital resonance of the tesseral harmonic term J 33 , which causes the significant oscillation of the semi major axis long period motion, and then leads to the special phenomenon jointly with the perturbation of the zonal harmonics term. The study reveals the orbital resonance phenomenon of the Tianwen-1 orbiter, and and finds that the high order tesseral harmonic term can still produce a relatively obvious orbital resonance phenomenon for the Mars orbiting satellite in the non synchronous orbit. The results can provide an important reference for the orbit design of subsequent Mars orbiting missions. |
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| Keywords: | Mars orbiter Relay orbit Sub satellite point drift Tesseral harmonic perturbation Orbital resonance |
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