The mobile satellite laser ranging system TROS1000, successfully developed in 2010, achieves a high repetition rate and enables daytime laser ranging. Its measurement range has reached up to 36000 km with an accuracy as precise as 1 cm. Using recent observations in Wuhan, Jiufeng, Xianning, and Rongcheng, Shandong, we introduce the progress made using this mobile observation system.
In a satellite laser ranging telescope system,well-aligned encoders of the elevation and azimuth axes are essential for tracking objects.However,it is very difficult and time-consuming to correct the bias between the absolute-position indices of the encoders and the astronomical coordinates,especially in the absence of a finder scope for our system.To solve this problem,a method is presented based on the phenomenon that all stars move anti-clockwise around Polaris in the northern hemisphere.Tests of the proposed adjustment procedure in a satellite laser ranging(SLR)system demonstrated the effectiveness and the time saved by using the approach,which greatly facilitates the optimization of a tracking system.
