1. Kyung Hee University, School of Space Research, Yongin, Republic of Korea
2. Max Planck Institute for Astronomy, Heidelberg, Germany
3. Korea Astronomy and Space Science Institute, Daejeon, Republic of Korea
4. Kyung Hee University, Graduate school of Physics Education, Seoul, Republic of Korea
5. Hanbat University, Department of Mechanical and Material Convergence System Engineering, Daejeon, Republic of Korea
6. Konkuk University, Seoul, Republic of Korea
7. Carnegie Institution for Science, Pasadena, California, United States
8. The University of Texas at Austin, Department of Astronomy, Austin, Texas, United States
9. University of Washington, Department of Astronomy, Seattle, Washington, United States