Recently, as various damages are expected due to the risk of falling space debris, many studies are being carried out to acquire space object information. In this research, an optical-based space object surveillance system was developed to acquire information about space objects. To acquire orbit information by photographing a space object with this system, the accuracy of position data of the space object is important. The telescope coordinate is located in the 2D CCD plane of the telescope, and the space objects are in the celestial coordinate. The two coordinates have a non-linear relation caused by a deflection of the mechanical system, a scattering of the atmosphere and so on. In this study, we propose an alignment method for two coordinate systems. First, a model that analyzes the geometric relation between the telescope system on earth and space objects is explained. Then, we also propose a second model with the addition of correction parameters. As a result of performing coordinate alignment according to the method and procedure proposed in this study, the pointing accuracy is lowered below 3 arcsec.

The deformable mirror is the main component of the adaptive optical imaging system, which removes the atmospheric disturbance and acquires the target image without any loss and the beam transmission system, which transmits the laser beam to a long distance. The mirror transforms the optical wavefront distortion caused by atmospheric disturbance into the opposite wavefront shape thereby correcting the distorted wavefront. In order to develop the deformable mirror, it is necessary to analyze the adaptive optics system and the usage environment where the application is required. In the present work, a prototype of a deformable mirror with a single continuous mirror was developed. In order to design the deformable mirror, the main factors of the adaptive optics system and the large diameter telescope were analyzed. Subsequently, the mirror material and the actuator were selected by confirming the amount of deformation through the finite element analysis. Based on the data collected, we designed and fabricated the prototype of the deformable mirror, and the Gaussian model was derived by analyzing the influence function of the deformable mirror through the design data. It was observed that the derived Gaussian model matched with the Zernike polynomial. Apparently, the fitting ability of the deformable mirror was confirmed.