Change for report #72262 TPC calibration Port request: Bug fix in the AliRelAlignerKalman

diff --git a/STEER/AliRelAlignerKalman.cxx b/STEER/AliRelAlignerKalman.cxx
index 791fe34c96c97967b9e2d06999fbd1d9eb08414d..99d35bb3b5c491edc0fc36d1290038767e8ba6d6 100644 (file)
--- a/STEER/AliRelAlignerKalman.cxx
+++ b/STEER/AliRelAlignerKalman.cxx
@@ -682,8 +682,8 @@ Bool_t AliRelAlignerKalman::UpdateEstimateKalman()
 //  else
 //  {
     Double_t det=0.0;
-    hpht.InvertFast(&det); //since the matrix is small...
-    if (det < 2e-55) return kFALSE; //we need some sort of protection even in this case....
+    hpht.Invert(&det); //since the matrix is small...
+    if (det < 2e-99) return kFALSE; //we need some sort of protection even in this case....
 //  }
   //printf("KalmanUpdate: det(hpht): %.4g\n",det);