diff --git a/Control/CalypsoExample/TrackerEfficiencyExample/CMakeLists.txt b/Control/CalypsoExample/TrackerEfficiencyExample/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c6313afbe62a89f23f246299409aadbf99a88b2f
--- /dev/null
+++ b/Control/CalypsoExample/TrackerEfficiencyExample/CMakeLists.txt
@@ -0,0 +1,17 @@
+################################################################################
+# Package: TrackerEfficiencyExample
+################################################################################
+
+# Declare the package name:
+atlas_subdir( TrackerEfficiencyExample )
+
+# Component(s) in the package:
+atlas_add_component( TrackerEfficiencyExample
+                    src/*.cxx src/*.h
+                    src/components/*.cxx
+                    LINK_LIBRARIES AthenaBaseComps xAODFaserWaveform ScintRawEvent
+                    GaudiKernel 
+                    AthViews StoreGateLib SGtests )
+
+#atlas_install_headers( TrackerPrepRawDataFormation )
+atlas_install_python_modules( python/*.py )
diff --git a/Control/CalypsoExample/TrackerEfficiencyExample/python/TrackerEfficiencyConfig.py b/Control/CalypsoExample/TrackerEfficiencyExample/python/TrackerEfficiencyConfig.py
new file mode 100644
index 0000000000000000000000000000000000000000..178c1b87952210890af171bafcde1f50643da908
--- /dev/null
+++ b/Control/CalypsoExample/TrackerEfficiencyExample/python/TrackerEfficiencyConfig.py
@@ -0,0 +1,48 @@
+# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+
+#!/usr/bin/env python
+import sys
+from AthenaConfiguration.ComponentAccumulator import ComponentAccumulator
+from AthenaConfiguration.ComponentFactory import CompFactory
+
+def TrackerEfficiencyExampleCfg(flags, **kwargs):
+    """Return ComponentAccumulator for TrackerEfficiencyAlg"""
+    acc = ComponentAccumulator()
+    Tracker__TrackerEfficiencyAlg=CompFactory.TrackerEfficiencyAlg
+    acc.addEventAlgo(Tracker__TrackerEfficiencyAlg(**kwargs))
+    
+    thistSvc = CompFactory.THistSvc()
+    thistSvc.Output += ["HIST DATAFILE='TrackerEfficiencyHistograms.root' OPT='RECREATE'"]
+    acc.addService(thistSvc)
+    return acc
+
+if __name__ == "__main__":
+    from AthenaCommon.Configurable import Configurable
+    from CalypsoConfiguration.AllConfigFlags import ConfigFlags
+
+    Configurable.configurableRun3Behavior = True
+    
+    # Flags for this job
+    ConfigFlags.Input.isMC = True                                # Needed to bypass autoconfig
+    ConfigFlags.IOVDb.GlobalTag = "OFLCOND-FASER-01"          # Needed to bypass autoconfig, only the "OFLCOND" matters at the moment
+    ConfigFlags.GeoModel.FaserVersion     = "FASER-01"           # Default FASER geometry
+
+    #REPLACE WITH FRIEDMAN STUFF==========
+    #ConfigFlags.Detector.SimulateFaserSCT = True
+    ConfigFlags.Input.Files = ["run001332.ESD.pool.root"] #["cosmics.HITS.pool.root"]#["my.COSMICHITS.pool.root"]
+    ConfigFlags.lock()
+    #=========================
+
+    # Configure components
+    from CalypsoConfiguration.MainServicesConfig import MainServicesCfg
+    from AthenaPoolCnvSvc.PoolReadConfig import PoolReadCfg
+    acc = MainServicesCfg(ConfigFlags)
+    acc.merge(PoolReadCfg(ConfigFlags))
+
+# Set things up to create a conditions DB with neutral Tracker alignment transforms
+    acc.merge(TrackerEfficiencyExampleCfg(ConfigFlags))
+
+# Execute and finish
+    sys.exit(int(acc.run(maxEvents=-1).isFailure()))
+
+
diff --git a/Control/CalypsoExample/TrackerEfficiencyExample/python/__init__.py b/Control/CalypsoExample/TrackerEfficiencyExample/python/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..eaec2db0a9e570f578a21e647c2d7d4c42d9bad5
--- /dev/null
+++ b/Control/CalypsoExample/TrackerEfficiencyExample/python/__init__.py
@@ -0,0 +1 @@
+#  __author__ = 'Savannah Shively'
\ No newline at end of file
diff --git a/Control/CalypsoExample/TrackerEfficiencyExample/src/TrackerEfficiencyAlg.cxx b/Control/CalypsoExample/TrackerEfficiencyExample/src/TrackerEfficiencyAlg.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..033918d16832a16d8e16214244544f99f2b95253
--- /dev/null
+++ b/Control/CalypsoExample/TrackerEfficiencyExample/src/TrackerEfficiencyAlg.cxx
@@ -0,0 +1,53 @@
+/*
+   Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+   */
+
+/**   @file TrackerEfficiencyAlg.cxx
+ *   Implementation file for the TrackerEfficiencyAlg class.
+ *   @author Savannah Shively
+ *   @date 2 September 2021
+ */
+#include "TrackerEfficiencyAlg.h"
+
+#include "StoreGate/ReadHandle.h"
+#include <TH1F.h>
+#include <TTree.h>
+#include <TBranch.h>
+
+
+//static const std::string moduleFailureReason{"TrackerEfficiencyAlg: Exceeds max clusters"};
+
+// Constructor with parameters:
+TrackerEfficiencyAlg::TrackerEfficiencyAlg(const std::string& name, ISvcLocator* pSvcLocator) :
+  AthReentrantAlgorithm(name, pSvcLocator), 
+  AthHistogramming( name ),
+  m_idHelper{nullptr},
+  m_histSvc ( "THistSvc/THistSvc", name ){}
+
+// Initialize method:
+StatusCode TrackerEfficiencyAlg::initialize() {
+  ATH_MSG_INFO("TrackerEfficiencyAlg::initialize()");
+
+  // Tree
+  m_tree = new TTree("residTree","Cosmics residuals");
+
+//hist test
+  m_hist = new TH1D("Stations", "Stations hit", 4, 0, 3);
+  ATH_CHECK(histSvc()->regHist("/HIST/myhist", m_hist));
+
+  return StatusCode::SUCCESS;
+}
+
+StatusCode TrackerEfficiencyAlg::execute(const EventContext& ctx) const
+{
+// Done
+  return StatusCode::SUCCESS;
+}
+
+StatusCode TrackerEfficiencyAlg::finalize() 
+{
+  ATH_MSG_INFO("TrackerEfficiencyAlg::finalize()");
+  return StatusCode::SUCCESS;
+}
+
+
diff --git a/Control/CalypsoExample/TrackerEfficiencyExample/src/TrackerEfficiencyAlg.h b/Control/CalypsoExample/TrackerEfficiencyExample/src/TrackerEfficiencyAlg.h
new file mode 100644
index 0000000000000000000000000000000000000000..cfaf444f5f53ebdc5f6feae488d4d34b2ba196ad
--- /dev/null
+++ b/Control/CalypsoExample/TrackerEfficiencyExample/src/TrackerEfficiencyAlg.h
@@ -0,0 +1,89 @@
+/*
+   Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
+   */
+
+/**   @file TrackerEfficiencyAlg.cxx
+ *   Implementation file for the TrackerEfficiencyAlg class.
+ *   @author Savannah Shively
+ *   @date 2 September 2021
+ */
+
+#ifndef FASERTrackerEfficiency_TrackerEfficiencyALG_H
+#define FASERTrackerEfficiency_TrackerEfficiencyALG_H
+
+// Base class
+#include "AthenaBaseComps/AthReentrantAlgorithm.h"
+#include "AthenaBaseComps/AthHistogramming.h"
+
+//Gaudi
+#include "GaudiKernel/ServiceHandle.h"
+#include "GaudiKernel/ToolHandle.h"
+
+
+//STL
+#include <map>
+#include <string>
+
+//RDO
+#include <TH1.h>
+#include <math.h>
+#include <TProfile.h>
+
+
+class FaserSCT_ID;
+class ISvcLocator;
+class StatusCode;
+class TH1;
+class TTree;
+namespace Trk
+{
+    class TrackStateOnSurface;
+}
+
+class TrackerEfficiencyAlg : public AthReentrantAlgorithm, AthHistogramming
+ {
+  public:
+    /// Constructor with parameters:
+    TrackerEfficiencyAlg(const std::string& name, ISvcLocator* pSvcLocator);
+    virtual ~TrackerEfficiencyAlg(){};
+    /**    @name Usual algorithm methods */
+    //@{
+    ///Retrieve the tools used and initialize variables
+    virtual StatusCode initialize() override;
+    ///Form clusters and record them in StoreGate (detector store)
+    virtual StatusCode execute(const EventContext& ctx) const override;
+    ///Clean up and release the collection containers
+    virtual StatusCode finalize() override;
+    //Make this algorithm clonable.
+    virtual bool isClonable() const override { return true; }
+    //@}
+    const ServiceHandle<ITHistSvc>& histSvc() const;
+
+    private:
+    /**    @name Disallow default instantiation, copy, assignment */
+    //@{
+    TrackerEfficiencyAlg() = delete;
+    TrackerEfficiencyAlg(const TrackerEfficiencyAlg&) = delete;
+    TrackerEfficiencyAlg &operator=(const TrackerEfficiencyAlg&) = delete;
+    //@}
+
+     const FaserSCT_ID* m_idHelper;
+    ServiceHandle<ITHistSvc> m_histSvc;
+
+    mutable TTree* m_tree;
+
+    //RDO
+    TH1* m_hist;  // Example histogram
+
+ };
+
+ // For the THistSvc
+inline const ServiceHandle<ITHistSvc>& TrackerEfficiencyAlg::histSvc() const 
+{
+  return m_histSvc;
+}
+
+#endif // FASERTrackerEfficiency_TrackerEfficiencyLG_H
+
+
+
diff --git a/Control/CalypsoExample/TrackerEfficiencyExample/src/components/TrackerEfficiencyExample_entries.cxx b/Control/CalypsoExample/TrackerEfficiencyExample/src/components/TrackerEfficiencyExample_entries.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..d2e8b1147d195b57b8452a39550fcaddfac673c2
--- /dev/null
+++ b/Control/CalypsoExample/TrackerEfficiencyExample/src/components/TrackerEfficiencyExample_entries.cxx
@@ -0,0 +1,3 @@
+#include "../TrackerEfficiencyAlg.h"
+
+DECLARE_COMPONENT( TrackerEfficiencyAlg ) //change alg name if update file/class etc