Complex of computer models for study of effectiveness of application of space information facilities was developed for solution the tasks of orbits monitoring and space objects recognition. It is shown, that space information facilities provide minimal breaks in observations and can make a significant informational contribution to the solution of the problem of reducing the required time of orbits determination of space objects, including maneuvering ones on both low and high orbits. Comparative assessments of required time for estimation of space objects orbits parameters for various orbits of space information facilities were obtained. It is also shown, that space systems allow carrying out recognition and control of space objects state more effectively, due to the possibility of their observation from short distances in the optical waveband. Methods of space objects image processing are developed and estimates of their effectiveness are presented. Proposals are given for use of small spacecrafts for monitoring low-Earth-orbit space objects when flying on cross courses.