Evaluation of the disturbing moment in the antenna pointing system movement simulation

This article provides for the task of construction of the antenna pointing system, which does not influence the orientation and stabilization of the spacecraft. The mathematical model of the antenna pointing system, that can simulate the dynamic processes occurring in it, is presented. The evaluation of possible disturbing moments is made on the basis of a mathematical model of the spacecraft antenna pointing system. Simulation results of the disturbing moment maximum amplitudes and their corresponding frequencies are defined. It is determined that the found value of the disturbing moments do not exceed the allowable values in the whole time domain. It is shown that the results can be used to estimate the dynamic processes on the spacecraft as a whole and to assess the accuracy of its orientation in space.