Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects
Abstract China's lunar exploration program has developed and progressed for more than 13 years. Over this time, Precise Orbit Determination (POD) has guaranteed successful execution of the Chang’e missions, and is the basis for further scientific investigations using radio science data; for exa...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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American Geophysical Union (AGU)
2021-04-01
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| Series: | Earth and Space Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2020EA001361 |
| _version_ | 1818457218982346752 |
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| author | Shanhong Liu Jianguo Yan Jianfeng Cao Mao Ye Xie Li Fei Li Jean‐Pierre Barriot |
| author_facet | Shanhong Liu Jianguo Yan Jianfeng Cao Mao Ye Xie Li Fei Li Jean‐Pierre Barriot |
| author_sort | Shanhong Liu |
| collection | DOAJ |
| description | Abstract China's lunar exploration program has developed and progressed for more than 13 years. Over this time, Precise Orbit Determination (POD) has guaranteed successful execution of the Chang’e missions, and is the basis for further scientific investigations using radio science data; for example, recovering the lunar gravity field to explore the inner structure and detect craters to study the evolutionary history of the moon. This study briefly reviews the Chang’e series mission orbit and radio tracking measurements. We reprocessed the tracking data and comprehensively summarized the evolution of the POD accuracy and the tracking system precision from the Chang’e 1 to Chang’e 4 missions using in‐house software. Our results show a progression of the tracking station, as the first Chang’e 1 mission only reached several millimeters per second level accuracy in the Doppler measurements and several meters level accuracy for the two‐way range measurements. Later on the accuracy of Chang’e 5T1 Doppler measurements reached about 0.35 mm/s and the accuracy of the Chang’e 3 two‐way range measurements below 0.7 m. Moreover, the newest Chang’e 4 relay satellite achieved POD residuals Root Mean Square for the two‐way range less than a meter and orbital accuracy at 200 m level, in contrast to meters level residual and the half‐kilometer level accuracy achieved during the Chang’e 1 mission. We can clearly see that the POD performance of the Chang’e spacecraft continuously improved. This research study is a reference for future Chinese Lunar exploration missions, as well as Chinese Mars and asteroid explorations. |
| first_indexed | 2024-12-14T22:39:05Z |
| format | Article |
| id | doaj.art-900cbb0906384d6aa13616c3019c491a |
| institution | Directory Open Access Journal |
| issn | 2333-5084 |
| language | English |
| last_indexed | 2024-12-14T22:39:05Z |
| publishDate | 2021-04-01 |
| publisher | American Geophysical Union (AGU) |
| record_format | Article |
| series | Earth and Space Science |
| spelling | doaj.art-900cbb0906384d6aa13616c3019c491a2022-12-21T22:45:02ZengAmerican Geophysical Union (AGU)Earth and Space Science2333-50842021-04-0184n/an/a10.1029/2020EA001361Review of the Precise Orbit Determination for Chinese Lunar Exploration ProjectsShanhong Liu0Jianguo Yan1Jianfeng Cao2Mao Ye3Xie Li4Fei Li5Jean‐Pierre Barriot6State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing Wuhan University Wuhan ChinaState Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing Wuhan University Wuhan ChinaBeijing Aerospace Flight and Control Center Beijing ChinaState Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing Wuhan University Wuhan ChinaBeijing Aerospace Flight and Control Center Beijing ChinaState Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing Wuhan University Wuhan ChinaState Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing Wuhan University Wuhan ChinaAbstract China's lunar exploration program has developed and progressed for more than 13 years. Over this time, Precise Orbit Determination (POD) has guaranteed successful execution of the Chang’e missions, and is the basis for further scientific investigations using radio science data; for example, recovering the lunar gravity field to explore the inner structure and detect craters to study the evolutionary history of the moon. This study briefly reviews the Chang’e series mission orbit and radio tracking measurements. We reprocessed the tracking data and comprehensively summarized the evolution of the POD accuracy and the tracking system precision from the Chang’e 1 to Chang’e 4 missions using in‐house software. Our results show a progression of the tracking station, as the first Chang’e 1 mission only reached several millimeters per second level accuracy in the Doppler measurements and several meters level accuracy for the two‐way range measurements. Later on the accuracy of Chang’e 5T1 Doppler measurements reached about 0.35 mm/s and the accuracy of the Chang’e 3 two‐way range measurements below 0.7 m. Moreover, the newest Chang’e 4 relay satellite achieved POD residuals Root Mean Square for the two‐way range less than a meter and orbital accuracy at 200 m level, in contrast to meters level residual and the half‐kilometer level accuracy achieved during the Chang’e 1 mission. We can clearly see that the POD performance of the Chang’e spacecraft continuously improved. This research study is a reference for future Chinese Lunar exploration missions, as well as Chinese Mars and asteroid explorations.https://doi.org/10.1029/2020EA001361Data analysisMoonprecise orbit determination |
| spellingShingle | Shanhong Liu Jianguo Yan Jianfeng Cao Mao Ye Xie Li Fei Li Jean‐Pierre Barriot Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects Earth and Space Science Data analysis Moon precise orbit determination |
| title | Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects |
| title_full | Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects |
| title_fullStr | Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects |
| title_full_unstemmed | Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects |
| title_short | Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects |
| title_sort | review of the precise orbit determination for chinese lunar exploration projects |
| topic | Data analysis Moon precise orbit determination |
| url | https://doi.org/10.1029/2020EA001361 |
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