Aspects of increase of efficiency of spacecraft’s motion control are discussed. It is supposed that basic means of control for change of spacecraft position are jet engines. The combining of control regimes of orientation and orbit correction, as perspective way of problem solution, is considered. New specific index of optimality is entered for estimate of a quality of motion control. Then, the problem of combining terminal orientation with correction of orbit altitude maintenance by optimal way is solved. Concrete control algorithm of spacecraft reorientation combined with orbit correction, in application to large massive spacecrafts and, in particular, orbital station, is presented. Results of mathematical simulation of motion control which uses the designed method are given. Also, estimation of efficiency indices is made for the mount scheme of motionless micro-engines. High efficiency of combining regimes of attitude control and correction of spacecraft’s orbit altitude is shown.
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