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Global Gravity Field Model from Taiji-1 Observations

文献类型：期刊论文

作者Wu, Liming6; Xu P(徐鹏); Zhao, Shuhong; Qiang, Li-E; Luo, Ziren6; Wu, Yueliang2
刊名MICROGRAVITY SCIENCE AND TECHNOLOGY ; 4
出版日期2022-08
卷号34页码:77
ISSN号0938-0108
关键词Taiji program Gravity field recovery Satellite gravity Gravitational wave detection
DOI10.1007/s12217-022-09998-5
英文摘要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.
学科主题Engineering, Aerospace ; Thermodynamics ; Mechanics
分类号二类
语种英语
WOS记录号WOS:000840315300001
资助机构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]
其他责任者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.
源URL[http://dspace.imech.ac.cn/handle/311007/90196]  
专题力学研究所_国家微重力实验室
作者单位1.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Natl Space Sci Ctr, 1 Nanertiao Zhongguancun, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, 84 Church St SE, Hangzhou 310024, Peoples R China
4.Lanzhou Univ, Lanzhou Ctr Theoret Phys, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
6.Changan Univ, Dept Geophys, Middle Sect Naner Huan Rd, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Liming,Xu P,Zhao, Shuhong,et al. Global Gravity Field Model from Taiji-1 Observations[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY, 4,2022,34:77.
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,34,77.
MLA Wu, Liming,et al."Global Gravity Field Model from Taiji-1 Observations".MICROGRAVITY SCIENCE AND TECHNOLOGY 34(2022):77.

入库方式： OAI收割

来源：力学研究所

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