Timeline/Pre-Flight/1559:57 UTC

Malaysia Airlines Flight MH370 Timeline - Pre-Flight

Pre-Flight

KLIA to South China Sea

South China Sea to Straits of Malacca

Straits of Malacca to Andaman Sea

Andaman Sea to North Indian Ocean

North Indian Ocean to Southern Indian Ocean

Event Summary

 23:59:57 MYT Saturday, 8 March 2014

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The SATCOM initiates a Log-On handover as Class 3 (voice and data capable) to the IOR I-3 satellite, using the HGA subsystem, with a valid Flight ID. This suggests that the IOR is now considered to be the best available satellite. This is probably because either the line of sight to the IOR satellite is now clearer than that to the POR satellite, or the antenna gain in the direction of the IOR satellite has become higher than the antenna gain in the direction of the POR satellite.

Event Details

1. Safety Investigation Report MH370/01/2018 Satellite Ground Station Logs - Key Observations

   The SATCOM initiates a Log-On handover as Class 3 (voice and data capable) to the IOR I-3 satellite, using the HGA subsystem, with a valid Flight ID. This suggests that the IOR is now considered to be the best available satellite. This is probably because either the line of sight to the IOR satellite is now clearer than that to the POR satellite, or the antenna gain in the direction of the IOR satellite has become higher than the antenna gain in the direction of the POR satellite.

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Notes

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Malaysian Time (MYT) is Coordinated Universal Time (UTC) + 8 hours

Inmarsat geostationary satellite above the Indian Ocean

HGAs

High Gain Antenna(s)

Flight Identifier, for example MH370