Optical Orbit Determination of a Geosynchronous Earth Orbit Satellite Effected by Baseline Distances between Various Ground-based Tracking Stations I: COMS simulation case

To protect and manage the Korean space assets including satellites, it is important to have precise positions and orbit\udinformation of each space objects. While Korea currently lacks optical observatories dedicated to satellite tracking,\udthe Korea Astronomy and Space Science Institute (KASI) is planning to establish an optical observatory for the active\udgeneration of space information. However, due to geopolitical reasons, it is difficult to acquire an adequately sufficient\udnumber of optical satellite observatories in Korea. Against this backdrop, this study examined the possible locations\udfor such observatories, and performed simulations to determine the differences in precision of optical orbit estimation\udresults in relation to the relative baseline distance between observatories. To simulate more realistic conditions of optical\udobservation, white noise was introduced to generate observation data, which was then used to investigate the effects of\udbaseline distance between optical observatories and the simulated white noise. We generated the optical observations with\udwhite noise to simulate the actual observation, estimated the orbits with several combinations of observation data from the\udobservatories of various baseline differences, and compared the estimated orbits to check the improvement of precision. As\uda result, the effect of the baseline distance in combined optical GEO satellite observation is obvious but small compared to\udthe observation resolution limit of optical GEO observation