what does the parameter TOTAL PRESSURE relate to?
when calculating roll angle is the roll positive to starboard or to port? i am assuming it is positive to starboard but want to double check.

The total pressure column is a pressure measurement in millibars and appears to be the pressure probe that measures pressure for engine controls (FADEC).

Digitally controlled Jet engines have probes that hang down into the airstream that measure temp and pressure. This may be one of those probes. I dont know much about FADEC accept that it was the answer for everythnig when asked an engine question during recurrent.. ;)

FADEC stands for Full Authority Digital Engine Control. It is basically a computer that controls a jet engine and takes workload off the pilot. Its a wonderful invention. Not to be confused with auto-throttles.

As for roll angle.. not sure.. i'd have to look it up.

But i know the roll was in a right bank (right wing low) at end of recording. So if you look at the end data.. there is your answer.

[cheers]