Datalog Messages

Could someone inform me of the difference between the POS, AHR2, and ATT dataflash log messages? I understand that POS is referring to positional data, ATT is attitude, and AHR2 seems to have both of those kinds of information. Which represents the EKF fused output? I am having some trouble finding information on them. Thanks!

Hello sethj,
I’ve the same question, have you got an answer?
How values are generated for lat, lng and alt for logs POS and AHR2?
GPS log, it is directly a read of nmea GGA on GPS port? I have this question because it’s strange on my log, GPS Status is 6 but my GPS is on NTRIP RTK.