NAOC Open IR
Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope
Li Jinling1; Xiong Fuwen2; Yu Chenglei3; Zhang Jinwei1; Guo Li1; Fan Qingyuan1
2014
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume59Issue:21Pages:2558
AbstractA local survey was implemented at the newly constructed Shanghai Tianma 65-m radio telescope. In this article, the survey implementation and data analysis are described. Particularly, by application of coordinate transformation, dimensionality reduction and step fitting of parameters, as well as adoption of reliability test measures of parameters, the mathematical model of data analysis is simplified, the detrimental effects of observation noises and unevenly spatial coverage of sample points are effectively compressed, the stability and precision of parameter solutions are improved, and so the geocentric three-dimensional coordinates of the reference point of this telescope in the precision of millimeters were determined, and the axis-offset was shown not significant on the precision level of 3 mm. The outcome provides important reference to the subsequent activities of antenna maintenance and scientific application, including the establishment of precise antenna orientation model, orientation guidance, fringe searching in data cross-correlation, analysis and application studies of VLBI observations. It is also important archive data for monitoring possible subsidence and lateral displacement of antenna foundation as well as deformation of antenna tracking-rail and structure.
KeywordMODELS VLBI Radio telescope Reference point Axis-offset Local survey
Language英语
Funding Project[National Natural Science Foundation of China] ; [Lunar Exploration of China] ; [Committee of Science and Technology of Shanghai] ; [National High Technology Research and Development Program of China]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/66302
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.Shanghai Institute Geol Survey, Shanghai 200072, Peoples R China
3.Shanghai Tech Ctr Leica Geosyst, Shanghai 201203, Peoples R China
4.中国科学院
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li Jinling,Xiong Fuwen,Yu Chenglei,et al. Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope[J]. CHINESE SCIENCE BULLETIN,2014,59(21):2558.
APA Li Jinling,Xiong Fuwen,Yu Chenglei,Zhang Jinwei,Guo Li,&Fan Qingyuan.(2014).Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope.CHINESE SCIENCE BULLETIN,59(21),2558.
MLA Li Jinling,et al."Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope".CHINESE SCIENCE BULLETIN 59.21(2014):2558.
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