Functional restrictions on the orientation of onboard and ground methods in the RadioAstron project

In this paper, functional restrictions on the orientation of the onboard systems of the space radio telescope, stations of scientific data receiving and ground radio telescopes in the RadioAstron project are considered. Restrictions important for practical problems of scheduling observations with ground-space radio interferometer are discussed in detail. An algorithm for calculating the angles of the narrow-beam antenna drive, which takes into account technological restrictions on the capability of its spatial orientation, is presented.