It occurred to me that flight track data may be beyond the reach of some of you who are nonetheless keen to help. If it is easier for any of you, please feel free to provide sourced confirmation of any or all of the following:
1) actual take-off time
2) filed flight plan
3) actual landing time
If I receive all of these for a single flight, I can build the detailed flight track myself.
Profuse thanks in advance for your time and consideration.