小行星探测器轨道计算的动力学研究

V11; 针对中国即将开展的小行星探测活动中面临的轨道计算动力学问题进行研究.分析了小行星探测器轨道计算的需求,并对小行星轨道计算中涉及的时空参考系进行了描述,然后对轨道计算所需考虑的动力学模型进行了讨论,并给出了各类摄动加速度的计算公式.最大的是太阳引力加速度,约为10-6km/s2;最小的是小行星本体摄动加速度,约为10-12～1013km/s2.利用欧空局Rosetta探测器的实测数据对动力学模型精度进行了验证,结果表明4天弧段位置互差约15m,速度互差约0.44 mm/s,动力学模型精度可靠.本研究可以为中国小行星探测活动轨道计算提供参考....

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Published in中国空间科学技术 Vol. 44; no. 4; pp. 111 - 118
Main Authors 王宏, 鄢建国, 樊敏, 李海涛
Format Journal Article
LanguageChinese
Published 北京跟踪与通信技术研究所,北京 100094%武汉大学测绘遥感信息工程国家重点实验室,武汉 430070 25.08.2024
Subjects
asteroid exploration
orbit perturbation
时空参考系
轨道摄动
gravitational field
dynamical models
动力学模型
引力场
space-time reference system
小行星探测
orbit calculations
轨道计算
Online AccessGet full text
ISSN1000-758X
DOI10.16708/j.cnki.1000-758X.2024.0062

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Abstract V11; 针对中国即将开展的小行星探测活动中面临的轨道计算动力学问题进行研究.分析了小行星探测器轨道计算的需求,并对小行星轨道计算中涉及的时空参考系进行了描述,然后对轨道计算所需考虑的动力学模型进行了讨论,并给出了各类摄动加速度的计算公式.最大的是太阳引力加速度,约为10-6km/s2;最小的是小行星本体摄动加速度,约为10-12～1013km/s2.利用欧空局Rosetta探测器的实测数据对动力学模型精度进行了验证,结果表明4天弧段位置互差约15m,速度互差约0.44 mm/s,动力学模型精度可靠.本研究可以为中国小行星探测活动轨道计算提供参考.
AbstractList V11; 针对中国即将开展的小行星探测活动中面临的轨道计算动力学问题进行研究.分析了小行星探测器轨道计算的需求,并对小行星轨道计算中涉及的时空参考系进行了描述,然后对轨道计算所需考虑的动力学模型进行了讨论,并给出了各类摄动加速度的计算公式.最大的是太阳引力加速度,约为10-6km/s2;最小的是小行星本体摄动加速度,约为10-12～1013km/s2.利用欧空局Rosetta探测器的实测数据对动力学模型精度进行了验证,结果表明4天弧段位置互差约15m,速度互差约0.44 mm/s,动力学模型精度可靠.本研究可以为中国小行星探测活动轨道计算提供参考.
Abstract_FL The problem of orbit calculation dynamics in the upcoming asteroid exploration missions of China is studied.The demand of asteroid probe orbit calculation is analyzed,and the space-time reference system involved in asteroid orbit calculation is described,then the dynamical models to be considered in orbit calculation are discussed.The calculation formulas of various types of perturbation acceleration are given.The largest force model is the gravitational acceleration of the Sun,with magnitude about 10-6km/s2,and the smallest is the asteroid body perturbation acceleration which is about 10-12～10-13km/s2.The difference between ephemeris of Rosetta provided by ESA and that integrated from the dynamical model in this paper shows that the four-day arc segment position error is about 15 m,velocity error is about 0.44 mm/s,so the accuracy of the dynamical model is reliable.The above study can provide a reference for the orbit calculation of China's asteroid exploration missions.
Author 樊敏
鄢建国
王宏
李海涛
AuthorAffiliation 北京跟踪与通信技术研究所,北京 100094%武汉大学测绘遥感信息工程国家重点实验室,武汉 430070
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Author_FL YAN Jianguo
WANG Hong
LI Haitao
FAN Min
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Keywords asteroid exploration
orbit perturbation
时空参考系
轨道摄动
gravitational field
dynamical models
动力学模型
引力场
space-time reference system
小行星探测
orbit calculations
轨道计算
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Publisher 北京跟踪与通信技术研究所,北京 100094%武汉大学测绘遥感信息工程国家重点实验室,武汉 430070
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Title 小行星探测器轨道计算的动力学研究
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