1. Geospace Physics Laboratory, Heliophysics Science DivisionNASA/Goddard Space Flight Center Greenbelt MD USA
2. Heliospheric Physics Laboratory, Heliophysics Science DivisionGMU/SWL/Goddard Space Flight Center Greenbelt MD USA
3. Institute of Atmospheric PhysicsCzech Academy of Sciences Prague Czech Republic
4. Space Weather Laboratory, Heliophysics Science DivisionUMBC/GPHI/Goddard Space Flight Center Greenbelt MD USA