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The NTSC VLBI System and its application in UT1 measurement
Yao, Dang1,2; Wu, Yuan-Wei1; Zhang, Bo3; Sun, Jing4; Sun, Yan2,3; Xu, Shuang-Jing3; Liu, Jia1; Ma, Lang-Ming1; Gong, Jian-Jun1; Yang, Ying1; Yang, Xu-Hai1
2020-06-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume20Issue:6Pages:10
AbstractIn order to measure the Universal Time (UT1) in real time, National Time Service Center (NTSC) has built a VGOS-like (VLBI Global Observing System) broadband VLBI network, which includes three 13-m radio telescopes located in Jilin, Sanya and Kashi, and a data analysis center in Xi'an. Each station is equipped with a highly stable hydrogen atomic clock and a self-developed VLBI backend, and is colocated with two GPS receivers. This VGOS-like VLBI network may play an important role in improving the Chinese broadband VLBI technology and making valuable contributions to domestic VLBI measurements of UT1. In this paper, we introduce the specifications of this VLBI network, and present the UT1 measurements at C-band conducted in 2018 using the Jilin-Kashi baseline of this network. The comparisons between our UT1 estimates and those provided by IERS suggest that the NTSC VLBI network is capable to determine UT1 accurate at the level of 58.8 mu s.
Keywordinstrumentation interferometers methods observational time Earth
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS)
DOI10.1088/1674-4527/20/6/93
Language英语
Funding ProjectNational Natural Science Foundation of China[11703033] ; National Natural Science Foundation of China[11673051] ; National Natural Science Foundation of China[11603001] ; National Natural Science Foundation of China[U1831136] ; West Light Foundation of the Chinese Academy of Sciences[XAB2016A06] ; 100 Talents Project of the Chinese Academy of Sciences (CAS)
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; 100 Talents Project of the Chinese Academy of Sciences (CAS) ; 100 Talents Project of the Chinese Academy of Sciences (CAS)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000545667900001
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/82815
Collection中国科学院国家天文台
Corresponding AuthorYao, Dang
Affiliation1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Yao, Dang,Wu, Yuan-Wei,Zhang, Bo,et al. The NTSC VLBI System and its application in UT1 measurement[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(6):10.
APA Yao, Dang.,Wu, Yuan-Wei.,Zhang, Bo.,Sun, Jing.,Sun, Yan.,...&Yang, Xu-Hai.(2020).The NTSC VLBI System and its application in UT1 measurement.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(6),10.
MLA Yao, Dang,et al."The NTSC VLBI System and its application in UT1 measurement".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.6(2020):10.
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