Flight times in red?

FlightAware General
1

When you look at the detailed times for a given flight some times the figures are in red (eg In this case Actual Takeoff at 17:32 UTC)
http://flightaware.com/live/flight/SIA68/history/20130714/1710Z/WSSS/LEBL/times

The corresponding tracklog shows times before this but at 17:32 teh aircraft is shown to be at 3300’
http://flightaware.com/live/flight/SIA68/history/20130714/1710Z/WSSS/LEBL/tracklog

What do the colours (red and green) mean and why don’t the times match-up?

Many thanks for your help.

Steve

2

The red/green colors indicate whether the time is on-time or behind schedule. In this case, it’s possible that the reported actual departuretime was incorrectly indicating that it departed late, but that was the actual time supplied to us by our data sources, even if the tracklog suggests it might have been in the air already. It’s sometimes difficult for us to automatically pick the best source of data when there are disagreements from our multiple sources.