A.N. Shmarin - Post-Graduate Student, Voronezh State University. E-mail: tim-shr@mail.ru S.D. Makhortov - Dr. Sc. (Phys.-Math.), Associate Professor, Head of Department, Voronezh State University (VSU). E-mail: sd@expert.vrn.ru

S.G. Vorona1, V.V. Lisickii2, A.V. Stolbov3

1−3 Mozhaisky Military Space Academy (St. Petersburg, Russia)