A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite
Abstract Surface charging is one of the most common causes of spacecraft anomalies. When and to what potential the spacecraft is charged are two important questions in space weather. Here, for a Chinese geosynchronous navigation satellite, we infer the extreme negative surface charging potentials fr...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-02-01
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| Series: | Space Weather |
| Online Access: | https://doi.org/10.1029/2023SW003780 |
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| author | Zhiyi Fu Zhenpeng Su Bin Miao Zhiyong Wu Yiren Li Kai Liu Xu Shan Yuming Wang |
| author_facet | Zhiyi Fu Zhenpeng Su Bin Miao Zhiyong Wu Yiren Li Kai Liu Xu Shan Yuming Wang |
| author_sort | Zhiyi Fu |
| collection | DOAJ |
| description | Abstract Surface charging is one of the most common causes of spacecraft anomalies. When and to what potential the spacecraft is charged are two important questions in space weather. Here, for a Chinese geosynchronous navigation satellite, we infer the extreme negative surface charging potentials from the ion differential fluxes measured by a low‐energy ion spectrometer. Without the solar eclipse effect away from the midnight, the charging potentials are found to have a negative limit which is determined by the maximum SuperMAG electrojet index in the preceding 2 hr. Such an empirical relation can be reasonably explained by the dependence of 1–50 keV electron fluxes on substorm strength. Similar relations may also exist for other inner magnetospheric spacecraft in the non‐eclipse region, which would be useful for spacecraft engineering and space weather alerts. |
| format | Article |
| id | doaj-art-e835b852329f4d8ba0cab974c81cfe76 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-e835b852329f4d8ba0cab974c81cfe762025-01-14T16:30:41ZengWileySpace Weather1542-73902024-02-01222n/an/a10.1029/2023SW003780A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous SatelliteZhiyi Fu0Zhenpeng Su1Bin Miao2Zhiyong Wu3Yiren Li4Kai Liu5Xu Shan6Yuming Wang7Deep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDeep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDeep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDeep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDeep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaDeep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaHefei National Research Center for Physical Sciences at the Microscale Department of Modern Physics University of Science and Technology of China Hefei ChinaDeep Space Exploration Laboratory School of Earth and Space Sciences University of Science and Technology of China Hefei ChinaAbstract Surface charging is one of the most common causes of spacecraft anomalies. When and to what potential the spacecraft is charged are two important questions in space weather. Here, for a Chinese geosynchronous navigation satellite, we infer the extreme negative surface charging potentials from the ion differential fluxes measured by a low‐energy ion spectrometer. Without the solar eclipse effect away from the midnight, the charging potentials are found to have a negative limit which is determined by the maximum SuperMAG electrojet index in the preceding 2 hr. Such an empirical relation can be reasonably explained by the dependence of 1–50 keV electron fluxes on substorm strength. Similar relations may also exist for other inner magnetospheric spacecraft in the non‐eclipse region, which would be useful for spacecraft engineering and space weather alerts.https://doi.org/10.1029/2023SW003780 |
| spellingShingle | Zhiyi Fu Zhenpeng Su Bin Miao Zhiyong Wu Yiren Li Kai Liu Xu Shan Yuming Wang A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite Space Weather |
| title | A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite |
| title_full | A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite |
| title_fullStr | A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite |
| title_full_unstemmed | A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite |
| title_short | A Substorm‐Dependent Negative Limit of Non‐Eclipse Surface Charging of a Chinese Geosynchronous Satellite |
| title_sort | substorm dependent negative limit of non eclipse surface charging of a chinese geosynchronous satellite |
| url | https://doi.org/10.1029/2023SW003780 |
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