Optimizing orbits for TianQin

TianQin is a geocentric space-based gravitational-wave observatory mission consisting of three drag-free controlled satellites in an equilateral triangle with an orbital radius of 1 0 5 km. The constellation faces the white-dwarf binary RX J0806.3 + 1527 located slightly below the ecliptic plane, an...

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Published inInternational journal of modern physics. D, Gravitation, astrophysics, cosmology Vol. 28; no. 9; p. 1950121
Main Authors Ye, Bo-Bing, Zhang, Xuefeng, Zhou, Ming-Yue, Wang, Yan, Yuan, Hui-Min, Gu, Defeng, Ding, Yanwei, Zhang, Jinxiu, Mei, Jianwei, Luo, Jun
Format Journal Article
LanguageEnglish
Published Singapore World Scientific Publishing Company 01.07.2019
World Scientific Publishing Co. Pte., Ltd
Subjects
Binary stars
Gravitation
Gravitational waves
Lunar orbits
Optimization
Orbits
Space gravitational-wave detection
orbit design
TianQin
geocentric orbit
orbit optimization
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Summary:TianQin is a geocentric space-based gravitational-wave observatory mission consisting of three drag-free controlled satellites in an equilateral triangle with an orbital radius of 1 0 5 km. The constellation faces the white-dwarf binary RX J0806.3 + 1527 located slightly below the ecliptic plane, and is subject to gravitational perturbations that can distort the formation. In this study, we present combined methods to optimize the TianQin orbits so that a set of 5-year stability requirements can be met. Moreover, we discuss slow long-term drift of the detector pointing due to orbital precession, and put forward stable orbits with six other pointings along the lunar orbital plane. Some implications of the findings are pointed out.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0218-2718
1793-6594
DOI:10.1142/S0218271819501219