Affiliation: | 1.Space Research Institute, 117997, Moscow, ul. Profsoyuznaya 84/32, Russia ;2.Kazan Federal University, 420000, Kazan, ul. Kremlevskaya 18, Russia ;3.Academy of Sciences of Tatarstan, Kazan, ul. Baumana, 20, Russia ;4.TüBITAK National Observatory, Antalya, Turkey ;5.Institute of Solar–Terrestrial Physics, Russian Academy of Sciences, Siberian Branch, 664033, Irkutsk, P.O. Box 291, Russia ;6.Max Planck Institut für Astrophysik, D-85741, Garching, Karl-Schwarzschild-Str. 1, Postfach 1317, Germany ; |