+TClonesArray *AliTRDReconstructor::fgClusters = NULL;
+TClonesArray *AliTRDReconstructor::fgTracklets = NULL;
+Char_t const * AliTRDReconstructor::fgSteerNames[kNsteer] = {
+ "DigitsConversion "
+ ,"Write Clusters "
+ ,"Write Online Tracklets "
+ ,"Stand Alone Tracking "
+ ,"HLT Mode "
+ ,"Process Online Trklts "
+ ,"Debug Streaming "
+ ,"Cl. Radial Correction "
+};
+Char_t const * AliTRDReconstructor::fgSteerFlags[kNsteer] = {
+ "dc"// digits conversion [false]
+ ,"cw"// write clusters [true]
+ ,"tw"// write online tracklets [false]
+ ,"sa"// track seeding (stand alone tracking) [true]
+ ,"hlt"// HLT reconstruction [false]
+ ,"tp"// also use online tracklets for reconstruction [false]
+ ,"deb"// Write debug stream [false]
+ ,"cc" // Cluster radial correction during reconstruction [false]
+};
+Char_t const * AliTRDReconstructor::fgTaskNames[AliTRDrecoParam::kTRDreconstructionTasks] = {
+ "Clusterizer"
+ ,"Tracker"
+ ,"PID"
+};
+Char_t const * AliTRDReconstructor::fgTaskFlags[AliTRDrecoParam::kTRDreconstructionTasks] = {
+ "cl"
+ ,"tr"
+ ,"pd"
+};
+Int_t AliTRDReconstructor::fgNTimeBins = -1;
+const Float_t AliTRDReconstructor::fgkMinClustersInTrack = 0.5; //
+const Float_t AliTRDReconstructor::fgkLabelFraction = 0.8; //
+const Double_t AliTRDReconstructor::fgkMaxChi2 = 12.0; //
+const Double_t AliTRDReconstructor::fgkMaxSnp = 0.95; // Maximum local sine of the azimuthal angle
+const Double_t AliTRDReconstructor::fgkMaxStep = 2.0; // Maximal step size in propagation
+const Double_t AliTRDReconstructor::fgkEpsilon = 1.e-5; // Precision of radial coordinate