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In this paper, we present the result of preliminary design of tracking mount for ARGO-M which is a movable satellite laser\udranging (SLR) system developed by Korea Astronomy and Space Science Institute (KASI). The tracking mount consists of\uda couple of core parts such as driving motors, encoders and bearings, and the requirements of each parts are determined\udon the basis of the technical consideration. 2D and 3D models for tracking mount were preliminarily designed using the\udselected core parts. In order to evaluate the validity of the preliminarily design, the simulator to test the elevation axis\udwas designed and manufactured. The test to check the tracking performance and system accuracy of the simulator was\udperformed, and it was confirmed that the preliminary design meets the operating specifications. Additionally, it was\udfound that the repetitive errors and hysteresis errors need to be improved by the additional control algorithm

Preliminary Design of Tracking Mount for Movable SLR