Mars Express tracking and orbit determination trials with Chinese VLBI network

	Mars Express tracking and orbit determination trials with Chinese VLBI network
	Cao JianFeng 1,2,3; Huang Yong1 ; Hu XiaoGong1 ; Ma MaoLi1 ; Zheng WeiMin1
刊名	CHINESE SCIENCE BULLETIN
	2010-11-01
卷号	55 期号:32 页码:3654-3660
关键词	VLBI MEX orbit determination
英文摘要	With strong support from European Space Agency (ESA), Shanghai Astronomical Observatory (SHAO) organized a tracking and orbit determination trails using Chinese VLBI Network (CVN) to track Mars Express, the first Mars probe launched by ESA. Using a high-resolution VLBI software correlator and Doppler measurement system developed in-house, two sets of tracking data. VLBI and Doppler, were acquired. The trials represent the first successful foray held in China to track a probe about 360 million kilometers away from the Earth. The tracking data are analyzed using a Mars satellite orbit determination software system developed at SHAO. The results show that the accuracy of 5 s integrated three-way-Doppler data is about 0.3 mm/s, or roughly the same accuracy as ESA's tracking data. Position discrepancies between the Doppler-based orbit solution of 8 h arc-length (about 1 orbital revolution) and ESA's reconstructed orbit are of the order of several hundred meters. In preparing for the Russia-China co-sponsored Mars exploration mission Phobos-Grunt-YingHuo, simulations were carried out to evaluate the achievable orbital accuracy levels and the contributions of VLBI and Doppler data respectively. Results show that Doppler data provide better orbit accuracy, so that for VLBI to be able to provide kilometer level orbit solutions, the accuracy of VLBI measurement needs to be improved by at least one order of magnitude.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	GRAVITY-FIELD
收录类别	SCI
语种	英语
WOS记录号	WOS:000285026300005
公开日期	2011-06-29
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/13473]
专题	上海天文台_VLBI研究室
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Beijing Aerosp Control & Command Ctr, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Cao JianFeng,Huang Yong,Hu XiaoGong,et al. Mars Express tracking and orbit determination trials with Chinese VLBI network[J]. CHINESE SCIENCE BULLETIN,2010,55(32):3654-3660.
APA	Cao JianFeng,Huang Yong,Hu XiaoGong,Ma MaoLi,&Zheng WeiMin.(2010).Mars Express tracking and orbit determination trials with Chinese VLBI network.CHINESE SCIENCE BULLETIN,55(32),3654-3660.
MLA	Cao JianFeng,et al."Mars Express tracking and orbit determination trials with Chinese VLBI network".CHINESE SCIENCE BULLETIN 55.32(2010):3654-3660.