Gwangson Choe(School of Space Research, Kyung Hee university, Yongin, Korea, Department of Astronomy and Space Science, Kyung Hee university, Yongin, Korea)
Sibaek Yi(Department of Astronomy and Space Science, Kyung Hee university, Yongin, Korea)
Minseon Lee(School of Space Research, Kyung Hee university, Yongin, Korea)