1. Space Research Institute, 84/32 Profsoyuznaya Street, Moscow 117997, Russia
2. Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetsky pr., 13, Moscow 119234, Russia
3. Laboratoire de Physique Corpusculaire, Université Clermont Auvergne, Université Blaise Pascal, CNRS/IN2P3, Clermont-Ferrand, France
4. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409 Moscow, Russia
5. Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow Region, 141700, Russia
6. Institute for Theoretical and Experimental Physics, Bolshaya Cheremushkinskaya ulitsa 25, 117218 Moscow, Russia
7. All-Russia Research Institute of Automatics, Sushchevskaya ulitsa 22, 127055 Moscow, Russia
8. Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8583, Japan
9. Ulugh Beg Astronomical Institute (UBAI) of the Uzbek Academy of Sciences, 33 Astronomicheskaya str., Tashkent 100052, Uzbekistan
10. Kharadze Abastumani Astrophysical Observatory, Ilia State University, Kakutsa Cholokashvili Ave 3/5 Tbilisi 0162, Georgia
11. Astronomical Institute of the Czech Academy of Sciences, Fričova 298, CZ-251 65 Ondřejov, Czech Republic
12. Institute of Solar-Terrestrial Physics, Russian Academy of Sciences, Siderian Branch, 664033, Irkutsk PO Box 291, Lermontov st., 126a, Russia
13. Kharkiv National University, Institute of Astronomy, 35 Sumska Str., Kharkiv UA-61022, Ukraine
14. Crimean Astrophysical Observatory of the Russian Academy of Sciences, 298409, Crimea, Bakhchisaray Region, Nauchny, Russia