CNN Early Start With John Berman and Christine Romans March 25, 2014 09:48:00
At this stage, the location of the aircraft and the satellite were known, so it was possible to contemplate symptom characteristics for the aircraft satellite and the ground station. during the flight, the ground station logged the transmitter and received powers frequency at each handshake. knowing the system characteristics and position of the satellite, it was possible considering aircraft performance to determine where on each arc the calculated burst frequency offset fits best. the analysis showed poor correlation with the northern corridor but good correlation with the southern corridor....
Source: archive.org