1. Swedish Institute of Space Physics Uppsala Sweden
2. Department of Physics and Astronomy Space and Plasma Physics Uppsala University Sweden
3. The Johns Hopkins University Applied Physics Laboratory Laurel MD USA
4. Laboratoire de Physique des Plasmas CNRS/Ecole Polytechnique IP Paris/Sorbonne Université/Université Paris Saclay/Observatoire de Paris Paris France
5. Space and Plasma Physics School of Electrical Engineering KTH Royal Institute of Technology Stockholm Sweden