NDLI: High-accuracy same-beam VLBI observations using Shanghai and Urumqi telescopes

Content Provider	Springer Nature Link
Author	Liu, QingHui Shi, Xian Kikuchi, Fuyuhiko Huang, Qian Kamata, Shun’ichi Matsumoto, Koji Hanada, Hideo Hong, XiaoYu Yu, AiLi Ping, JingSong Fan, QingYuan Xia, Bo An, Tao Qian, ZhiHan Yang, WenJun Zhang, Hua Wang, Zhen Wang, Na
Copyright Year	2009
Abstract	The same-beam VLBI observations of Rstar and Vstar, which were two small satellites of Japanese lunar mission, SELENE, were successfully performed by using Shanghai and Urumqi 25-m telescopes. When the separation angle between Rstar and Vstar was less than 0.1 deg, the differential phase delay of the X-band signals between Rstar and Vstar on Shanghai-Urumqi baseline was obtained with a very small error of 0.15 mm rms, which was reduced by 1–2 order compared with the former VLBI results. When the separation angle was less than 0.56 deg, the differential phase delay of the S-band signals was also obtained with a very small error of several mm rms. The orbit determination for Rstar and Vstar was performed, and the accuracy was improved to a level of several meters by using VLBI and Doppler data. The high-accuracy same-beam differential VLBI technique is very useful in orbit determination for a spacecraft, and will be used in orbit determination for Mars missions of China Yinghuo-1 and Russia Phobos-grunt.
Starting Page	1858
Ending Page	1866
Page Count	9
File Format	PDF
ISSN	16721799
Journal	Science in China Series G
Volume Number	52
Issue Number	12
e-ISSN	18622844
Language	English
Publisher	SP Science in China Press
Publisher Date	2010-01-14
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	same-beam differential VLBI phase delay precise orbit determination Astronomy, Observations and Techniques Classical Continuum Physics Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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