1. Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), Seri Kembangan, Malaysia
2. Department of Computer and Communication System Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Seri Kembangan, Malaysia
3. Institute of Climate Change, Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Space Science Center, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia
4. Institute of Climate Change, Department of Applied Physics, Faculty of Science and Technology, Space Science Center, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia
5. Space Science Center, Institute of Climate Change, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia
6. Hayakawa Institute of Seismo Electromagnetics Company Ltd., (Hi-SEM), UEC Alliance Center, Kojimacho, Japan