*Hiroaki Misawa¹, Fuminori Tsuchiya¹, Shinya Satoh¹, Hajime Kita¹, Mamoru Sekido², Kazuhiro Takefuji², Eiji Kawai², Tetsuro Kondo², Shingo Hasegawa² (1.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 2.National Institute of Information and Communications Technology)

*Tetsuro Kondo¹, Kazuhiro Takefuji¹ (1.National Institute of Information and Communications Technology)

*Mamoru Sekido¹, Kazuhiro Takefuji¹, Hideki Ujihara¹, Tetsuro Kondo¹, Yuka Miyauchi¹, Masanori Tsutsumi¹, Eiji Kawai¹, Shingo Hasegawa¹, Hiroshi Takiguchi¹, Ryuichi Ichikawa², Yuko Hanado¹, Yasuhiro Koyama³, Ken-ichi Watabe⁴, Tomonari Suzuyama⁴, Jun-ichi Komuro⁵, Kenjiro Terada⁶, Kunitaka Namba⁶, Rumi Takahashi⁶, Yoshihiro Okamoto⁶, Tetsuro Aoki⁶, Takatoshi Ikeda⁷ (1.National Institute of Information and Communications Technology, Space Time Standards Group, 2.Technology Policy Planning and Coordination, Global ICT Strategy Bureau Technology Policy Division, The Ministry of Internal Affairs and Communications, 3.National Institute of Information and Communications Technology, International Relations Office, 4.AIST, National Metrology Institute of Japan, Time Standards Group, 5.NICT, Outcome Promotion Department, Development support Section, 6.NICT, Outcome Promotion Department, Information System Section, 7.NICT, Network Architecture Laboratory)