Tam Dao¹, Minh Huy Le², Brett A Carter³, Que Le⁴ and Thanh Thuy Trinh⁴, (1)RMIT University, Melbourne, VIC, Australia, (2)Institute of Geophysics Vietnam Academy of Science and Technology, Hanoi, Vietnam, (3)RMIT University, SPACE Research Centre, Melbourne, VIC, Australia, (4)International University, Vietnam National University, Ho Chi Minh City, Vietnam