1. Institute of Solar‐Terrestrial Physics SB RAS Irkutsk Russia
2. Institute of Space and Atmospheric Studies University of Saskatchewan 116 Science Place Saskatoon SKS7N 5E2 Canada
3. Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA
4. Research Institute in Astrophysics and Planetology (IRAP) Toulouse University CNRS CNES Toulouse France