1. Polar Geophysical Institute Apatity Russia
2. Institute of Applied Physics of the RAS Nizhny Novgorod Russia
3. JAXA Sagamihara Japan
4. Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan
5. Osaka University Osaka Japan
6. The University of Tokyo Tokyo Japan
7. Tohoku University Sendai Japan
8. Kanazawa University Kanazawa Japan
9. New Jersey Institute of Technology Newark NJ USA
10. Sodankylä Geophysical Observatory University of Oulu Sodankylä Finland