Analysis of Malaysia Airlines Flight 370 satellite communications dynamics, such as possible and probable aircraft speeds, altitudes, and autopilot modes. Two statistical analyses were made and combined with calculations of Flight 370's maximum range to determine the most probable location of Flight 370 at the time of the 8:19 transmission, which is along the 8:19 BTO arc from approximately to . Malaysia Airlines Flight 370 departed Kuala Lumpur International Airport at 00:41 Malaysia Standard Time (MYT) on 8 March 2014 (16:41 UTC, 7 March), bound for Beijing Capital International Airport. At 1:19, Malaysian air traffic control (ATC) initiated a hand-off to Ho Chi Minh area ATC. The captain
Malaysia Airlines Flight 370 370 on the Lumpur Radar frequency – the frequency on which Flight 370 last made contact with Malaysian air traffic control – and on emergency frequencies. The attempt was unsuccessful. At 03:30, Malaysia Airlines' operations centre informed Kuala Lumpur ACC that the locations it had provided earlier were "based on flight projection and not reliable for aircraft positioning." Over the next hour, Kuala Lumpur ACC contacted Ho Chi Minh ACC asking whether they had signalled Chinese air traffic control. At 05:09, Singapore ACC was queried for information about Flight 370. At 05:20, an undisclosed official contacted Kuala Lumpur ACC requesting