Realization of Automatic Pointing Correction and Calibration for 66m Deep-Space Antenna in Jiamusi

As the key parameter of the attenna system, the pointing accuracy affects the quality of the task implementation. A basic way of improving accuracy is to do pointing correction and calibration, which needs plenty of work that must be done manually for the 66m deep space antenna in Jiamusi, including task planning and tracking scan of a large number of celestial objects. The operation of setting various targets and controlling the antenna have to be repeated hundreds of times. To increase the efficiency of targets scanning, and to reduce the manual operations a complete set of automation software for pointing calibration has been designed and developed, which makes it possible for automatic programming and execution of calibration observation planning. The practical results show that the distribution of scanning sources can be more uniform, which helps to improve the accuracy of pointing corrections when applied in pointing correction model.