The mystery was solved a few hours later when the nearby King Mongkut Memorial Park of Science and Technology announced via Facebook that the International Space Station had just passed over the country.
Photo credit: King Mongkut Memorial Park of Science and Technology
"Today [January 13], the International Space Station moved from southwest to the northeast, passing over countries such as Indonesia, Thailand and Cambodia," the page said.
Photo credit: King Mongkut Memorial Park of Science and Technology
It added that the space station currently has seven astronauts on board and is orbiting the Earth at a speed of 7.66 kilometres per second.