Astronomical Institute of Uzbek Academy of Sciences, 33 Astronomicheskaya Street, 100052 Tashkent, Uzbekistan;
Astronomical Institute of Uzbek Academy of Sciences, 33 Astronomicheskaya Street, 100052 Tashkent, Uzbekistan;
Institute of Astronomy Russian Academy of Sciences, 48 Pyatnitskaya Street, 119017 Moscow, Russia;