1. Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics University of California Los Angeles CA USA
2. Space Research Institute RAS Moscow Russia
3. Space Sciences Laboratory University of California Berkeley CA USA
4. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
5. Heliophysics Science Division NASA Goddard Space Flight Center Greenbelt MD USA