Determination of Chinese mobile SLR sites’ coordinates

The geocentric coordinates of three mobile sites including Fangshan in Beijing, Urumqi in the Xinjiang Uygur Autonomous Region and Lhasa in Tibet are determined in the ITRF2000 frame by means of both the global SLR data and the mobile (SLR) data obtained by a mobile satellite laser ranging (SLR) apparatus from Aug. 2000 to Dec. 2001. The results showed that the geometrical performance of Chinese SLR network has been significantly improved.