1. Department of Mechanical Engineering, Ben-Gurion University of the Negev, POB 653, 8410530 Beer-Sheva, Israel
2. Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden
3. Institute of Radioelectronics and Information Technology, Ural Federal University, 19 Mira Street, 620002 Ekaterinburg, Russia
4. IZMIRAN, Troitsk, Moscow Region 108840, Russia
5. Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, 100101 Beijing, China
6. Kislovodsk Mountain Astronomical Station of Pulkovo Observatory, 357700 Kislovodsk, Russia
7. N. N. Krasovskii Institute of Mathematics and Mechanics (IMM UB RAS), 620108 Ekaterinburg, Russia