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Orbit and tracking data evaluation of Chang'E-4 relay satellite
Qin Songhe1,2,4; Huang Yong1,2,3,4; Li Peijia1,2; Shan Quan1,2,4; Fan Min5,6; Hu Xiaogong1,2,3; Wang Guangli1,2,4
2019-08-15
Source PublicationADVANCES IN SPACE RESEARCH
ISSN0273-1177
Volume64Issue:4Pages:836-846
Corresponding AuthorHuang Yong(yongh@shao.ac.cn)
AbstractA lander and a rover were placed on the Moon in China's Chang'E-4 Lunar exploration mission, which is the first lander on the far side of the Moon. To provide communication and telemetry between the Earth and the lander, the CE-4 relay satellite (Queqiao) was launched firstly to the Earth-Moon L2 region in May 2018. The orbit precision of the Chang'E-4 relay satellite is evaluated in this paper. The ground tracking data including Ranging, Doppler, VLBI delay and rate are processed using a batch least squares method. The results show that the residual RMS of ranging, Doppler, VLBI delay and VLBI delay rate based on S-band are about 0.53 m, 0.37 mm/s, 1.16 ns and 0.67 ps/s, respectively. Compared with the previous missions (CE-1/CE-2/CE-5T1) using S-band tracking systems, the measurement precision of the CE-4 relay satellite is significantly improved. Furthermore, the analysis shows that VLBI data can improve the precision of orbit determination and prediction of the halo orbit around the Earth-Moon L2 point: the position precision is better than 100 m and the velocity precision is better than 2 mm/s. Since the CE-4 relay satellite is less than 300 km away from the lunar surface when it flies by the Moon, the lunar non-spherical gravitation has a significant influence on the orbit determination, and the lunar gravity field need to be considered when the Earth is chosen as the central body. (C) 2019 COSPAR. Published by Elsevier Ltd. All rights reserved.
KeywordCE-4 relay satellite Orbit determination L2 point of Earth-Moon system
DOI10.1016/j.asr.2019.05.028
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS SubjectAstronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000474677800003
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27324
Collection中国科学院紫金山天文台
Corresponding AuthorHuang Yong
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Planetary Sci, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai Key Lab Space Nav & Positioning Tech, Shanghai 200030, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Beijing Inst Tracking & Telecommun Technol, Beijing 100094, Peoples R China
6.Key Lab Space Object Measurement, Beijing 100094, Peoples R China
Recommended Citation
GB/T 7714
Qin Songhe,Huang Yong,Li Peijia,et al. Orbit and tracking data evaluation of Chang'E-4 relay satellite[J]. ADVANCES IN SPACE RESEARCH,2019,64(4):836-846.
APA Qin Songhe.,Huang Yong.,Li Peijia.,Shan Quan.,Fan Min.,...&Wang Guangli.(2019).Orbit and tracking data evaluation of Chang'E-4 relay satellite.ADVANCES IN SPACE RESEARCH,64(4),836-846.
MLA Qin Songhe,et al."Orbit and tracking data evaluation of Chang'E-4 relay satellite".ADVANCES IN SPACE RESEARCH 64.4(2019):836-846.
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