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

• DOI: 10.1007/s11433-009-0280-1
• Publication Date: 2010-01-12T22:34:54Z
• Authors: QingHui Liu; Xian Shi; Fuyuhiko Kikuchi; Qian Huang; Shun’ichi Kamata; Koji Matsumoto; Hideo Hanada; XiaoYu Hong; AiLi Yu; JingSong Ping; QingYuan Fan; Bo Xia; Tao An; ZhiHan Qian; WenJun Yang; Hua Zhang; Zhen Wang; Na Wang
• Keywords: Very-long-baseline interferometry; Orbit Determination; Orbit (dynamics); Differential phase

The same-beam VLBI observations of Rstar and Vstar, which were two small satellites Japanese lunar mission, SELENE, successfully performed by using Shanghai Urumqi 25-m telescopes. When the separation angle between Vstar was less than 0.1 deg, differential phase delay X-band signals on Shanghai-Urumqi baseline obtained with a very error 0.15 mm rms, reduced 1–2 order compared former results. 0.56 S-band also several rms. orbit determination for performed, accuracy improved to level meters Doppler data. high-accuracy technique is useful in spacecraft, will be used Mars missions China Yinghuo-1 Russia Phobos-grunt.