- AliExternalTrackParam *fIp; // Track parameters at the first measured point (TPC)
- AliExternalTrackParam *fTPCInner; // Track parameters at the first measured point (TPC) - first itteration
- AliExternalTrackParam *fOp; // Track parameters at the last measured point (TPC or TRD)
+ AliExternalTrackParam *fIp; // Track parameters estimated at the inner wall of TPC
+ AliExternalTrackParam *fTPCInner; // Track parameters estimated at the inner wall of TPC using the TPC stand-alone
+ AliExternalTrackParam *fOp; // Track parameters estimated at the point of maximal radial coordinate reached during the tracking