Touchdown Point on ILS: how does FOQA do it?

[Capn Bloggs]

Did a search for FOQA but nothing came up, so here goes.

I'm interested in finding out how the FOQA system works out where the aeroplane actually touches down after an ILS (or can it work it out for any landing?). If anybody knows or can point me to the answer, I'd be grateful.

Thanks, Bloggs.