Int_t FollowProlongation(AliTRDtrack& t, Int_t rf);
Int_t FollowBackProlongation(AliTRDtrack& t);
Int_t Refit(AliTRDtrack& t, Int_t rf);
+ void CookdEdxTimBin(AliTRDtrack& t);
Int_t PropagateToTPC(AliTRDtrack& t);
Int_t PropagateToOuterPlane(AliTRDtrack& t, Double_t x);