Originally Posted by
bearfoil
Permit me a display of ignorance or inattention, (both?) but the LKP at 02:10, is that actual, timed transmission stamp, or receipt by ACARS??
Time-stamped 2:10, received 2:10:34, so presumably the actual position at 2:10:30? slotting in as high priority message in the initial bunch of errors, re-presented here
AF447 ACARS MESSAGES - Color Coded & Interactive Version
BEA use these receipt times to report
end of the flight between 2 h 14 min 26 and 2 h 15 min 14
There was an analysis a long time back of 10 minutes sector times, distance travelled and speeds, which made it clear the actual position time within the minute must shift. Assumed, but never confirmed as far as I know, that AF systems must adjust this timeslot to avoid aircraft using same satellite at same time.
If you want to repeat this the numbers used by the BEA in the flight path graphic time in seconds 'rounded to nearest minute', decimal location to ACARS 2 decimal place precision given in
http://www.bea.aero/en/enquetes/flig...data/AF447.txt