Domenico Trotta, European Space Agency, European Space Astronomy Center (ESA), Villanueva De La Canada, Spain, Yuri V Khotyaintsev, Swedish Institute of Space Physics (IRF), Uppsala, Sweden, Takanobu Amano, University of Tokyo, Graduate School of Science, Bunkyo-ku, Japan, Andrew P Dimmock, IRF, Uppsala, Sweden, Stuart Bale, University of California, Berkeley, Berkeley, CA, United States, Robert F Wimmer-Schweingruber, University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, Antonio Vecchio, Paris Observatory Meudon, Meudon, France, Milan Maksimovic, LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, Meudon, France, David Pisa, University of Iowa, Iowa City, United States, Georgios Nicolaou, University College London, Mullard Space Science Laboratory, London, United Kingdom, Christopher John Owen, UCL, Mullard Space Science Laboratory, Dorking, United Kingdom, Nina Dresing, University of Turku, Department of Physics and Astronomy, Turku, Finland, Annamaria Fedeli, University of Turku, Turku, Finland, Francesco Valentini, University della Calabria, Rende, Italy, Andrea Larosa, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Orléans Cedex 2, France and Timothy Simon Horbury, Imperial College London, Department of Physics, London, SW7, United Kingdom