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Evaluation of C-Band Precise Orbit Determination of Geostationary Earth Orbit Satellites based on the Chinese Area Positioning System

Published online by Cambridge University Press:  03 December 2013

Cao Fen ,
Yang XuHai ,
Su MuDan ,
Li ZhiGang ,
Chen Liang ,
Li WeiChao ,
Sun BaoQi ,
Kong Yao ,
Wei Pei  and
Feng ChuGang
Cao Fen*
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China) (Graduate University of Chinese Academy of Sciences, China)
Yang XuHai
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China)
Su MuDan
Affiliation:
(Beijing Institute of Tracking and Telecommunication Technology, China)
Li ZhiGang
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China)
Chen Liang
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China)
Li WeiChao
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China)
Sun BaoQi
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China)
Kong Yao
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China) (Graduate University of Chinese Academy of Sciences, China)
Wei Pei
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Key Laboratory of Precision Navigation and Timing Technology, National Time Service Center of Chinese Academy of Sciences, China)
Feng ChuGang
Affiliation:
(National Time Service Center, Chinese Academy of Sciences, China) (Shanghai Astronomical Observatory of Chinese Academy of Sciences, China)
*
(E-mail: [email protected])
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Abstract

Geostationary Earth Orbit (GEO) satellites play a significant role in the space segment of the Chinese Area Navigation System. The C-Band transfer ranging method developed by the National Time Service Center (NTSC) has been widely used in the Chinese Area Positioning System (CAPS), with its advantages of separating satellite ranging from time synchronization and being unaffected by weather. The explicit ranging correction models for the C-Band transfer ranging method are introduced in detail in this article for the first time. Precise Orbit Determination (POD) using C-Band pseudo-range observation of GEO satellite 2010-001A in July 2012 has been conducted. The residual Root Mean Square (RMS) of each site and POD are analysed with orbit difference over overlaps of adjacent orbit arcs. Moreover, the orbit of the GEO satellite has been evaluated by Satellite Laser Ranging (SLR) data from both domestic and foreign SLR sites for the first time. The residual RMS of POD using C-Band observation is better than 0·1 m, and the orbit difference over overlaps of adjacent orbit arcs is better than 3 m. In addition, the residual RMS in line-of-sight for a SLR site in China are better than 1 m, while the RMS for the Yarragadee site in Australia is about 3·4 m. It has been shown that the GEO satellite orbit accords very well with the C-Band observation. Also, the distribution of CAPS stations affects the orbit precision. All sites in CAPS are now located in China with low and medium latitudes. The residual RMS of the SLR site in the southern hemisphere is larger than that of the site in China.

Keywords

C-Band transfer ranging correction modelEvaluation of precise orbit determination (POD)Chinese Area Positioning System (CAPS)
Type
Research Article
Information
The Journal of Navigation , Volume 67 , Issue 2 , March 2014 , pp. 343 - 351
Copyright
Copyright © The Royal Institute of Navigation 2013 

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