On Military radar a 'blip' reappeared at 0215:25 MYT and was observed until it finally disappeared at 0222:12 MYT.
At 0222:12 MYT the 'blip' was about 195 nm from Butterworth, on a heading of 285° - towards waypoint MEKAR on Airway N571 - with a speed of 516 kt and an altitude of 29,500 ft.
a spot of light on a radar screen indicating the position of a detected aircraft (Source: Safety Investigation Report)
Malaysian Time (MYT) is Coordinated Universal Time (UTC) + 8 hours
A predetermined geographical position that is defined in terms of latitude and longitude coordinates, used for navigation. More Info
Knot - A unit of speed that is equal to one nautical mile (1.852 km) per hour