^○Alexey Lyubushin (Institute of Physics of the Earth, Moscow, Russia)

^○Sho Morita¹, Masao Nakatani², Toru Mogi¹ (1.Hokkaido University, Hokkaido, Japan, 2.The University of Tokyo, Tokyo, Japan)

^○Dimitar Ouzounov^{1, 5}, Sergey Puienets², Tiger Liu³, Katsumi Hattori⁴, Manuel Hernández-Pajares⁵, Alberto García-Rigo⁵, Menas Kafatos¹ (1.Chapman University, Orange, CA, USA, 2.Space Research Institute, RAS, Moscow, Russia, 3.National Central University, Chung-Li, Taiwan, 4.Chiba University, Chiba, Japan, 5.Technical University of Catalonia (UPC), Barcelona, Spain, 6.Astrogeo Center, VA, USA)