1. Space Research Institute of RAS Moscow Russia
2. Moscow Institute of Physics and Technology Moscow Russia
3. NASA Goddard Space Flight Center Greenbelt MD USA
4. Department of PhysicsMoscow State University Moscow Russia
5. Higher School of EconomicsNational University Moscow Russia
6. Department of Physics and AstronomyUniversity of Iowa Iowa City IA USA
7. Berkeley, Space Sciences LaboratoryUniversity of California Berkeley CA USA
8. Max Planck Institute for Solar System Research Göttingen Germany