Affiliation: | Faculty of Science, University of Auckland, Auckland, New Zealand,; Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand,; Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya 464, Japan,; School of Chemical and Physical Sciences, Victoria University, Wellington, New Zealand,; Carter Observatory, PO Box 2909, Wellington, New Zealand,; Institute of Cosmic Ray Research, University of Tokyo, Tanashi, Tokyo 188, Japan,; Research Institute of Civilization, Tama 206, Japan,; Department of Physics, Kyoto University, Kyoto 606, Japan,; Nagano National College of Technology, Japan,; Tokyo Metropolitan College of Aeronautics, Tokyo 116, Japan,; Tohoku University, Sendai, Japan and; KEK Laboratory, Tsukuba 305, Japan |