Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects

Liu, Shanhong; Yan, Jianguo; Cao, Jianfeng; Ye, Mao; Xie, Li; Li, Fēi; Barriot, J. P.

doi:10.1029/2020ea001361

Cited by 9 publications

(2 citation statements)

References 55 publications

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“…Due to the frequent unloading of the momentum wheel, in POD the unloading acceleration could be solved, as the orbit integration of the spacecraft is interrupted and restarted at the start and end time of the unloading. Another highlight of this work is that our new gravity field model was solved based on our in-house software (Yan et al 2020;Liu et al 2021Liu et al , 2022, MAGREAS validated via the GEODYN-II software and Multi-satellite precision Orbit Determination and data Analysis Software in solar system (MODAS) (Cao et al 2010).…”

Section: Configurationsmentioning

confidence: 99%

An Independent Degree-eight Mars Gravity Field Model and the Expected Results from the Tianwen-1 Mission

Liu¹,

Cao

Yan

et al. 2023

Res. Astron. Astrophys.

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Tianwen-1 is China’s first independent interplanetary exploration mission, targeting Mars, and includes orbiting, landing, and rover phases. Similar to previous Mars missions, the Tianwen-1 orbiter was designed for polar orbits during the scientific mission period but has an exceptional eccentricity of approximately 0.59. We provide the first independent eight-degree Martian gravity field model in this paper, which was developed exclusively by a team working in China with our independent software as well, based on about two months of radiometric Doppler and range data from only the Tianwen-1 mission. This model is independent from the models created by the groups at NASA Jet Propulsion Laboratory (JPL) and Goddard Space Flight Center (GSFC) in the United States, as well as the Centre National d’Etudes Spatiales (CNES) in France. Furthermore, in order to optimize the engineering and scientific benefits, we proposed a number of potential orbits for the extended Tianwen-1 mission. In order to solve a higher independent Mars gravity field model, the viability of modifying the perigee height was investigated, with the priority considerations of fuel savings and implementation hazards being controlled.

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Section: Configurationsmentioning

confidence: 99%

An Independent Degree-eight Mars Gravity Field Model and the Expected Results from the Tianwen-1 Mission

Liu¹,

Cao

Yan

et al. 2023

Res. Astron. Astrophys.

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“…To further fully study the scienti c application of probe orbit data, Ye et al (2017) developed a lunar spacecraft orbit determination system (LUGREAS), based on GEODYN-II. This system has been iteratively updated through multiple versions for use when processing lunar and Mars spacecraft tracking data (Liu et al, 2019;Yang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Small Body Precise Orbit Determination Toolkit（SPOT） and its application

Jianguo,

Wutong,

et al. 2023

Preprint

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The orbiting and positioning of probes in deep-space exploration missions cannot be separated from the support of a software platform for precise orbit determination. The development of a software platform is essential in engineering and scientific applications. Thus, the Wuhan University planetary geodesy group has independently developed a software platform, called Small Body Precise Orbit Determination Toolkit (SPOT), in response to the demand for spacecraft precise orbit determination. Moreover, based on the goal of serving the first asteroid exploration mission to be implemented in China will enrich China's scientific radio science outputs. This paper briefly introduces the design concept, core structure, and main functions of SPOT, and subsequently focuses on some simulation experiments and real tracking data analysis based on SPOT. The functionality and self-consistency of the SPOT were verified through simulation experiments, and construction of some new measurement models and inversions of small body gravity fields. The reliability of the software platform was further verified from the processing of radio tracking data and landmark data from the Rosetta mission, as well as from the Neptunian gravity estimated from the motion of Triton based on astrometric observations. The computational efficiency and accuracy of SPOT have reached international equivalent level.

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Searching For Optimal Areas of Circumlunar Space for Placement of Satellites Moving in Circular Orbits

Popandopulo,

Aleksandrova

2024

Russ Phys J

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Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects

Abstract: Lunar exploration continually attracts the interest and excitement of scientists worldwide. Over the past 60 years, there have been more than 100 lunar exploration missions adding to our collective knowledge of the moon and the evolution of the solar system.

Cited by 9 publications

References 55 publications

An Independent Degree-eight Mars Gravity Field Model and the Expected Results from the Tianwen-1 Mission

An Independent Degree-eight Mars Gravity Field Model and the Expected Results from the Tianwen-1 Mission

Small Body Precise Orbit Determination Toolkit（SPOT） and its application

Searching For Optimal Areas of Circumlunar Space for Placement of Satellites Moving in Circular Orbits

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