| Global Gravity Field Model from Taiji-1 Observations | |
Wu, Liming1; Xu P(徐鹏); Zhao, Shuhong; Qiang, Li-E; Luo, Ziren1 ; Wu, Yueliang5
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| Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY
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| 2022-08 | |
| Volume | 34Issue:4Pages:77 |
| ISSN | 0938-0108 |
| Abstract | Taiji-1 is the first technology demonstration satellite of the Taiji program of China's space-borne gravitational wave antenna. After the demonstration of the key individual technologies, Taiji-1 continues collecting the data of the precision orbit determinations, satellite attitudes, and non-conservative forces exerted on the S/C. Therefore, during its free-fall, Taiji-1 can be viewed as operating in the high-low satellite-to-satellite tracking mode of a gravity recovery mission. In this work, we have selected and analyzed the one month data from Taiji-1's observations, and developed the techniques to resolve the long term interruptions and disturbances in the data due to the scheduled technology demonstration experiments. The first global gravity model TJGM-r1911, that independently derived from China's own satellite mission, is successfully built from Taiji-1's observations. Compared with gravity models from CHAMP and other satellite gravity missions, the accuracy discrepancies exist, which is mainly caused by the data discontinuity problem. As the extended free-falling phase been approved, Taiji-1 could serve as a gravity recovery mission for China since 2022 and it will provide us the independent measurement of both the static and the monthly time-variable global gravity field. |
| Keyword | Taiji program Gravity field recovery Satellite gravity Gravitational wave detection |
| Subject Area | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| DOI | 10.1007/s12217-022-09998-5 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000840315300001 |
| Funding Organization | National Key Research and Development Program of China [2020YFC2200601, 2020YFC2200104] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA15020700] ; Youth Fund Project of National Natural Science Foundation of China [11905017] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Xu, P (corresponding author), Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China. ; Xu, P (corresponding author), Lanzhou Univ, Lanzhou Ctr Theoret Phys, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China. ; Xu, P (corresponding author), Univ Chinese Acad Sci, Hangzhou Inst Adv Study, 84 Church St SE, Hangzhou 310024, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90196 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Changan Univ, Dept Geophys, Middle Sect Naner Huan Rd, Xian 710054, Peoples R China 2.Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China 3.Lanzhou Univ, Lanzhou Ctr Theoret Phys, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China 4.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, 84 Church St SE, Hangzhou 310024, Peoples R China 5.Chinese Acad Sci, Natl Space Sci Ctr, 1 Nanertiao Zhongguancun, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Liming,Xu P,Zhao, Shuhong,et al. Global Gravity Field Model from Taiji-1 Observations[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2022,34,4,:77.Rp_Au:Xu, P (corresponding author), Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China., Xu, P (corresponding author), Lanzhou Univ, Lanzhou Ctr Theoret Phys, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China., Xu, P (corresponding author), Univ Chinese Acad Sci, Hangzhou Inst Adv Study, 84 Church St SE, Hangzhou 310024, Peoples R China. |
| APA | Wu, Liming,徐鹏,Zhao, Shuhong,Qiang, Li-E,Luo, Ziren,&Wu, Yueliang.(2022).Global Gravity Field Model from Taiji-1 Observations.MICROGRAVITY SCIENCE AND TECHNOLOGY,34(4),77. |
| MLA | Wu, Liming,et al."Global Gravity Field Model from Taiji-1 Observations".MICROGRAVITY SCIENCE AND TECHNOLOGY 34.4(2022):77. |
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| Jp2022FA226_2022_Glo（5220KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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