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Retrieval of atmospheric mass densities in lower thermosphere below 200 km from precise orbit of re-entry object CZ-3B R/B by analytical and numerical methods
Zhang, Ming-Jiang1,2; Wang, Hong-Bo1,2; Zhao, Chang-Yin1,2; Xiong, Jian-Ning1,2; Wei, Dong1,2; Zhang, Wei1,2; Yu, Sheng-Xian1,2
2018-08-01
Source PublicationASTROPHYSICS AND SPACE SCIENCE
ISSN0004-640X
Volume363Issue:8Pages:11
Corresponding AuthorZhao, Chang-Yin(cyzhao@pmo.ac.cn)
AbstractTaking the re-entry object CZ-3B R/B (COSPAR identifier 2012-018D, NORAD catalog number 38253) as an example, retrieval of atmospheric mass densities in lower thermosphere below 200 km from its rebuilt precise orbit is studied in this paper. Two methodologies, i.e. analytical and numerical methods, are adopted in the retrieval. Basic principles of these two methodologies are briefly introduced. Based on the short-arc sparse observational data accumulated in the high accuracy re-entry prediction, orbit determinations of re-entry object CZ-3B R/B are performed sectionally, and then its precise orbit is rebuilt. According to the orbit theory, the variation of orbital semi-major axis of re-entry object CZ-3B R/B induced by atmospheric drag perturbation only is derived from the rebuilt precise orbit. In the derivation of secular change of the orbital semi-major axis of re-entry object CZ-3B R/B induced by atmospheric drag perturbation only, the time-span is set as one minute tentatively. And then retrieval results of atmospheric mass densities in lower thermosphere below 200 km by analytical and numerical methods are presented, as well as their bias deviations from the calculated results of the NRLMSISE-00 empirical model of the atmosphere. Setting bias deviation bands, the corresponding 'confidence coefficients' of the retrieved atmospheric mass densities with respect to the model values are given. Average bias deviations of the retrieved atmospheric mass densities by analytical and numerical methods from the model values are also calculated respectively. On the whole, the retrieved atmospheric mass densities by numerical method approach to the model values more closely; the differences between the retrieved results and the model values are relatively smaller at the peaks of atmospheric mass densities than the other places.
KeywordAtmospheric mass density Precise orbit Re-entry object Analytical method Numerical method
DOI10.1007/s10509-018-3396-9
WOS KeywordSPACECRAFT ORBITS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000440104500002
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/21646
Collection中国科学院紫金山天文台
Corresponding AuthorZhao, Chang-Yin
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210034, Jiangsu, Peoples R China
2.Chinese Acad Sci, PMO, Key Lab Space Object & Debris Observat, Nanjing 210034, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ming-Jiang,Wang, Hong-Bo,Zhao, Chang-Yin,et al. Retrieval of atmospheric mass densities in lower thermosphere below 200 km from precise orbit of re-entry object CZ-3B R/B by analytical and numerical methods[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(8):11.
APA Zhang, Ming-Jiang.,Wang, Hong-Bo.,Zhao, Chang-Yin.,Xiong, Jian-Ning.,Wei, Dong.,...&Yu, Sheng-Xian.(2018).Retrieval of atmospheric mass densities in lower thermosphere below 200 km from precise orbit of re-entry object CZ-3B R/B by analytical and numerical methods.ASTROPHYSICS AND SPACE SCIENCE,363(8),11.
MLA Zhang, Ming-Jiang,et al."Retrieval of atmospheric mass densities in lower thermosphere below 200 km from precise orbit of re-entry object CZ-3B R/B by analytical and numerical methods".ASTROPHYSICS AND SPACE SCIENCE 363.8(2018):11.
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