1. LPC2E/CNRSUniversity of Orleans Orleans France
2. LE STUDIUM, Loire Valley Institute for Advanced StudiesUniversity of Orleans and University of Tour Orleans France
3. Astronomy and Space Physics DepartmentNational Taras Shevchenko University of Kiev Kiev Ukraine
4. Space Research Institute Moscow Russia
5. Swedish Institute of Space Physics Uppsala Sweden
6. CEA, DAM, DIF, F‐91297 Arpajon France
7. Department of Automatic Control and Systems EngineeringUniversity of Sheffield Sheffield South Yorkshire UK
8. CNES Toulouse France