Journal of Astronautics ›› 2020, Vol. 41 ›› Issue (10): 1251-1258.doi: 10.3873/j.issn.1000-1328.2020.10.002

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Dynamics in Orbital Determination of Jupiter Spacecraft

CAO Jian feng, HUANG Yong, DUAN Jian feng, QIN Song he , ZHANG Yu , LI Xie   

  1. 1. Science and Technology on Aerospace Flight Dynamics Laboratory, Beijing 100094, China;2. Beijing Aerospace Control Center, Beijing 100094, China;3. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China;4. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2019-09-16 Revised:2019-10-23 Online:2020-10-15 Published:2020-10-15

Abstract: The orbital dynamics in the orbit determination of Jupiter spacecraft is studied in this paper. Firstly, the spacetime reference systems involved in the Jupiter orbit determination are summarized, and the differences between the Jupiter dynamic time (TDJ) and the barycentric dynamical time (TDB) are compared. Secondly, the orientation parameters of the Jupiter are described, and the relationship between the Jupiters celestial reference system and the bodyfixed reference system is given. Thirdly, the dynamical models for Jupiter spacecraft orbit determination is discussed, and the perturbation formulations are given. Finally, the ephemeris data of JUNO are fitted by the dynamical method to verify the dynamic models.

Key words: Jupiter exploration, Orbit determination, Spacetime reference systems, Dynamical models

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