*Jooyeon Geem¹, Masateru Ishiguro¹, Yoonsoo P. Bach¹, Daisuke Kuroda², Hiroyuki Naito³, Yoonyoung Kim¹, Yuna G. Kwon¹, Masataka Imai⁴, Kiyoshi Kuramoto⁴, Makoto Watanabe⁵, Ryo Okazaki⁶ (1.Department of Astronomy, Seoul National University, 2.Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, 3.Nayoro Observatory, 4.Department of Cosmosciences, Graduate School of Science, Hokkaido University, 5.Faculty of Science Department of Applied Physics, Okayama University of Science, 6.Hokkaido University of Education, Asahikawa Campus)

*Yuna Grace Kwon¹, MASATERU ISHIGURO¹, Yoshiharu Shinnaka², Tatsuya Nakaoka³, Koji S Kawabata³, Daisuke Kuroda⁴, Hidekazu Hanayama⁵, Miho Kawabata³, Makoto Uemura³, Hiroshi Akitaya⁶ (1.Seoul National University, South Korea, 2.National Astronomical Observatory of Japan, 3.Hiroshima University, Japan, 4.Okayama Astrophysical Observatory, Japan, 5.Ishigakijima Astronomical Observatory, Japan, 6.Saitama University, Japan)