1. Department of Space Physics, Institute of Atmospheric Physics Czech Academy of Sciences Prague Czechia
2. Faculty of Mathematics and Physics Charles University Prague Czechia
3. Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
4. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
5. Department of Physics University of Otago Dunedin New Zealand
6. British Antarctic Survey (NERC) Cambridge UK
7. Department of Physics and Astronomy University of Iowa Iowa City IA USA