Salah Haggag1, Moutaz Ramadan2

1 The Egyptian Russian University (Cairo 11829, Arab Republic of Egypt)
2 Port Said University (Port Said, Arab Republic of Egypt)
1 salah-haggag@eru.edu.eg

G.D. Manucharyan1, I.V. Fomin2

1, 2 Bauman Moscow State Technical University (Moscow, Russia)
1 Sternberg Astronomical Institute, Moscow State University (Moscow, Russia)
1 gdmanucharyan@bmstu.ru, 2 fomin_iv@bmstu.ru