Orbit determination ability analysis of the GRAIL gravity model

被引：0
作者：
Ye M. [1 ]
Li F. [1 ,2 ]
Yan J. [1 ]
Hao W. [2 ]
Shao X. [1 ]
机构：
[1] State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan
[2] Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan
来源：
| 1600年 / Editorial Board of Medical Journal of Wuhan University卷 / 41期
基金：
中国国家自然科学基金;
关键词：
Apollo; 16; GRAIL; Lunar gravity field; Orbit prediction; Precise orbit determination;
D O I：
10.13203/j.whugis20150008
中图分类号：
学科分类号：
摘要：
The new GRAIL gravity model GRGM660PRIM has advanced in the aspect of resolution and degree when compared with historical lunar gravity field models. In this paper, we present a quantitative analysis of the orbit determination ability of the GRGM660PRIM in orbit prediction and precise orbit determination (POD). In a comparison with the LP50Q and SGM150j models, results show that the GRGM660PRIM is close to the level of the LP150Q and SGM150 in satellite lifetime prediction; in the Apollo 16 subsatellite POD, GRGM660PRIM shows its advantages at high degrees and precision, the residuals RMS of two Doppler decreases from 1.36~1.48 mm/s to 0.722 mm/s, and the three way Doppler residuals RMS decrease from 1.67~1.69 mm/s to 1.2 mm/s; the precision of orbit determination improves significantly. These conclusions can provide a reference for the upcoming Chinese Chang'E-5 mission and further lunar missions. © 2016, Wuhan University. All right reserved.
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页码：93 / 99
页数：6
相关论文
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