What I would like to have is the same set of data for BTO and BFO as we have for MH370, but for a flight that proceeded normally (and hence we know where it actually was for any given value pair).
Is that available anywhere? Any random flight would do, but obviously it would be nice to have something that proceeded at about the same distance from the recording satellite.
I believe this exercise has been done by Inmarsat as part of the work to validate their calculations. I'm not sure now whether I read it in an official statement from the investigation team, from Inmarsat or the independent group coordinated by Duncan Steele. Nevertheless, the data does exist and has been used to discriminate between northern and southern routes.
PS: Inmarsat's own statement -
http://www.inmarsat.com/news/malaysi...tails-uk-aaib/