1. Department of Earth and Planetary Sciences; Kyushu University; Hakozaki Japan
2. Space Environment Research Center; Kyushu University; Hakozaki Japan
3. Centre for Space Physics; University of Newcastle; Callaghan, New South Wales Australia
4. Guam Magnetic Observatory; U.S. Geological Survey; Dededo Guam
5. Institute of Space Science; National Central University; Chung-Li Taiwan
6. Ionospheric Systems Research; Noosaville, Queensland Australia
7. Ionospheric Prediction Service Radio and Space Services; Bureau of Meteorology; Sydney, New South Wales Australia
8. Manila Observatory; Quezon Philippines
9. Applied Electromagnetic Research Center; National Institute of Information and Communications Technology; Tokyo Japan
10. V. I. Il'ichev Pacific Oceanological Institute; Far Eastern Branch of the Russian Academy of Sciences; Vladivostok Russia
11. Department of Physics; University of San Carlos; Cebu City Philippines
12. National Institute of Aeronautics and Space; Bandung Indonesia
13. Institute of Cosmophysical Research and Radio Wave Propagation; Far Eastern Branch of the Russian Academy of Sciences; Paratunka Russia
14. Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya Japan