Evaluating the contribution of Tianwen-4 mission to Jupiter's gravity field estimation using inter-satellite tracking
文献类型：期刊论文
| 作者 | Afzal, Zohaib3; Yan, Jianguo2,3; Barriot, Jean-Pierre1,3; Sun, Shangbiao3; Haider, Zeeshan3; Aslam, Rana Waqar3 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2025-07-16 |
| 卷号 | 699页码:12 |
| 关键词 | gravitation methods: data analysis space vehicles celestial mechanics planets and satellites: gaseous planets planets and satellites: individual: Jupiter |
| ISSN号 | 0004-6361 |
| DOI | 10.1051/0004-6361/202554439 |
| 通讯作者 | Yan, Jianguo(jgyan@whu.edu.cn) |
| 英文摘要 | Context. The upcoming Chinese Tianwen-4 mission, featuring both primary and secondary satellites, promises to significantly enhance our understanding of Jupiter's gravity field. We provide here a comprehensive evaluation of its contribution to modeling of Jupiter's gravity field. Aims. This study investigates the potential contribution of the Tianwen-4 mission to the estimation of Jupiter's gravity field and the tidal effects k(nm) associated with the Galilean moons by incorporating spacecraft-to-spacecraft tracking (SST) alongside traditional two-way (2W) observations. Methods. We analyze various observational factors, such as orbital altitudes, noise levels, data durations, and tidal responses, to evaluate their impact on gravity field estimation accuracy. Results. Our analysis demonstrates that the combined 2W and SST mode enhances the precision of gravity field estimates by up to an order of magnitude, reducing formal errors, and improving spatial resolution compared to the 2W mode alone, even when using shorter arcs data. Furthermore, the combined mode yields a superior performance in the estimation of Love numbers, with lower orbital altitudes and longer data collection periods further improving accuracy, despite introducing operational challenges. Conclusions. The enhanced sensitivity and accuracy provided by the SST configuration offer valuable insights into Jupiter's internal structure and dynamics, thereby guiding the design of future missions aimed at maximizing scientific returns. |
| WOS关键词 | JUNO SPACECRAFT ; GRACE-FO ; PLANETARY ; GALILEO |
| 资助项目 | [2022YFF0503202] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001690938400001 |
| 出版者 | EDP SCIENCES S A |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8561]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Yan, Jianguo |
| 作者单位 | 1.Univ French Polynesia, Geodesy Observ Tahiti, BP 6570, F-98702 Tahiti, French Polynesi, France 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 3.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & Re, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Afzal, Zohaib,Yan, Jianguo,Barriot, Jean-Pierre,et al. Evaluating the contribution of Tianwen-4 mission to Jupiter's gravity field estimation using inter-satellite tracking[J]. ASTRONOMY & ASTROPHYSICS,2025,699:12. |
| APA | Afzal, Zohaib,Yan, Jianguo,Barriot, Jean-Pierre,Sun, Shangbiao,Haider, Zeeshan,&Aslam, Rana Waqar.(2025).Evaluating the contribution of Tianwen-4 mission to Jupiter's gravity field estimation using inter-satellite tracking.ASTRONOMY & ASTROPHYSICS,699,12. |
| MLA | Afzal, Zohaib,et al."Evaluating the contribution of Tianwen-4 mission to Jupiter's gravity field estimation using inter-satellite tracking".ASTRONOMY & ASTROPHYSICS 699(2025):12. |
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来源：新疆天文台
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