1. Jet Propulsion Laboratory; California Institute of Technology; Pasadena USA
2. RISH; Kyoto University; Uji, Kyoto Japan
3. IGPP; University of California; Riverside California USA
4. KUGI; Kyoto University; Kyoto Japan
5. SERC; Kyushu University; Fukuoka Japan
6. INPE; Sao Jose dos Campos; Sao Paulo Brazil
7. Department of Earth and Environmental Sciences; Ludwig-Maximilians University; Munich Germany
8. Indian Institute of Geomagnetism; Mumbai India
9. Max Planck Institute for Solar System Research; Katlenburg-Lindau Germany