Actually,
it doesn't seem to be displaying some planes.
GTI405 SFO-CVG, properly displayed, appears to have been on full flight
AAL493, PHX-OAK, properly displayed, appears to have been on full flight
A3001I, SUU-MIB, online for about 15 minutes
AAL276, SFO-JFK, online for over an hour, probably the whole flight
KLM605, EHAM-SFO, online for about 18 minutes, 20 miles from destination at 13000
Looking at this, and comparing it to the flight map at airstats, I assume that the flight only displays when the pilot has been connected for the full duration of the flight. Would it be possible to alter this, as many pilots disconnect and reconnect during the flight.
If we plan on actually using this as a TMU display (with maps, etc.), I believe all flights should be shown. Perhaps you could merge the 2 minute data with airstats data, and for the flights that have been connected the whole time, use the airstats data to display them at 1 minute intervals.