-done something new. Used the ability to work out the time differences b/w signals to and from our satellite and our network to determine a direction of travel.
Then we continued looking at pings - we compared to other similar flights to establish a pattern. What we discovered is that the southern path predicted is very much in line with the pattern we saw - ruling out the norhtern path.
-says no way it went North.
-talks about "handshake." Satellite is like handset, ACARS is like an app on the handset. App was turned off, but "handset" wasnt.
-Has reached the limit of any research they can do on the data from the plane.
-"Doppler Shift" - simle terms - way of how we see the effect of the small shift of the satellie in space relative to the aircraft. From that process, compression or expansion of the wavelength, you can know whether the aircraft is moving closer to further away from the satellite.
***my note - I don't really see how they can determine southern path from doppler shift b/c northern route would also be equidistant? Wouldn't the wavelengths be the same distance on both arcs? IDK.
-Q: what made Inmarsat go back and look at the data again?
A: We weren't party to the investigation at first. We were just providing data. His understanding is that investigators were trying to rule out possibilities and their data was being weighed against the Northern route - there were "sheer number of" ships at sea along Northern routh, very difficult to believe no watch captain would not see a plane in distress, burning or distressed aircraft. Nor could they say how it would go through defense systems in North, primarily India. So question marks.
Went to US experts for fruther study. He thinks the sudden turn South of USS Kidd and sending Poseidon reprenents time when investigators fairy certain of Southern route.
