1. Department of Physics and Astronomy, Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
2. Amanogawa Galaxy Astronomy Research Center, Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
3. Center for General Education, Institute for Comprehensive Education, Kagoshima University, 1-21-30 Korimoto, Kagoshima 890-0065, Japan
4. Department of Physics and Astronomy, Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
5. National Time Service Center, Chinese Academy of Sciences, Xi’An, Shaanxi 710600, China
6. Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China
7. Department of Physics and Astronomy and MQ Research Centre in Astronomy, Astrophysics and Astrophotonics, Macquarie University, NSW 2109, Australia
8. SKA Organisation, Jordrell Bank, Macclesfield SK11 9FT, UK
9. Institudo de Astrofisíca de Andalucía (CSIC), Glorieta de la Astronomía s/n, E-18008 Granada, Spain