1. Space Research Institute of RAS Moscow Russia
2. Moscow Institute of Physics and Technology Moscow Russia
3. Scobeltsyn Nuclear Physics InstituteLomonosov Moscow State University Moscow Russia
4. Max Planck Institute for Solar System Research Gӧttingen Germany
5. Physics DepartmentLomonosov Moscow State University Moscow Russia
6. Higher School of EconomicsNational University Moscow Russia
7. NASA Goddard Space Flight Center Greenbelt MD USA
8. Space Sciences Laboratory University of California Berkeley CA USA