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 on Flight 370 stopped functioning between 01:07 and 02:03 MYT (most likely around the same time the plane lost contact by secondary radar), the SDU remained operative. After last contact by primary radar west of Malaysia, the following events were recorded in the log of Inmarsat's ground station at Perth, Western Australia (all times are MYT/UTC+8): The aircraft did not respond to a ping at 09:15. A few deductions can be made from the satellite communications. The first is that the aircraft remained operational until at least 08:19 MYT—seven hours after final contact was made with air traffic control over