[InterceptPoint]

How does that theory explain signal strength readings recorded by the Inmarsat satellite?

I'm not sure those were signal strength or timing measurements but in any case we were told that those measurements provided a range calculation from satellite to MH370.

The image below shows (in purple) the two possible paths that the aircraft took based on these hourly pings. One northern path crosses over India and would have, I would assume, allowed for detection of the aircraft by many radar surveillance systems in that country and others. The southern path is far from any possible radar detection, heads for the suspected debris field and ends there.

It seems pretty likely to me that this plane "landed" in the ocean off the coast of Australia. Not a good spot.

[Uncle Chip]

Thanks for this graphic as those previous pings were almost as important as the last one at 8:11.

These show why the plane could not have flown to the Maldives or that vicinity or shadowed another plane over India otherwise the distance between the arcs would have been greater.

If correct these show that it headed northwest from the Straits of Malaca to a point south of the Andamans where it turned again and headed due south at about 3:11.

The way they would know that is the difference between 3:11 and 4:11 arc distances would be miniscule.