*Mamoru Yamamoto¹, Syota Suzuki¹, Susumu Saito², Chia-Hung Chen³, Akinori Saito⁴ (1.Research Institute for Sustainable Humanosphere, Kyoto University, 2.Electronic Navigation Research Institute, 3.National Cheng Kung University, 4.Department of Geophysics, Kyoto University)

*Prayitno Abadi^1,2, Yuichi Otsuka¹, Kazuo Shiokawa¹, Shin Suzuki³, Susumu Saito⁴, Hermann Luehr⁵, Jaeheung Park⁶, Huixin Liu⁷ (1.Institute for Space-Earth Environmental Research (ISEE) , Nagoya University, Japan, 2.Space Science Center, Indonesian National Institute of Aeronautics and Space (LAPAN), Indonesia, 3.Faculty of Regional Policy, Aichi University, Japan, 4.Electronic Navigation Research Institute, Tokyo, Japan, 5.Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, 6.Korea Astronomy and Space Science Institute, 7.Earth and Planetary Science Division, Kyushu University SERC, Kyushu University)

*Kornyanat Watthanasangmechai¹, Mamoru Ishii¹, Takashi Maruyama¹, Tatsuhiro Yokoyama¹, Susumu Saito² (1.National Institute of Information and Communications Technology, 2.Electronic Navigation Research Institute)

*Susumu Saito¹, Mamoru Ishii² (1.Navigation Systems Department, Electronic Navigation Research Institute, 2.National Institute of Information and Communications Technology)