From 3f6669865e9cb48bafcbbffcf002ca94ac605d51 Mon Sep 17 00:00:00 2001
From: shahoian <ruben.shahoyan@cern.ch>
Date: Tue, 3 Mar 2026 00:54:45 +0100
Subject: [PATCH] Parse and pass SOR to o2-steer-colcontexttool in FST

The o2-steer-colcontexttool was using timestamp -1 (i.e. now) therefore the FST is
generating the context with the mean-vertex available at givin moment. If this happen
to be the default meanvertex with sigmaX,Y of 0.5 cm, the generated data is not reconstructable
in the ITS since the reconstruction will use the meanvertx with small sigma corresponding to the
selected run number.
---
 .../Calibration/testMacros/getRunParameters.cxx    | 14 ++++++++++++++
 prodtests/full_system_test.sh                      |  5 +++++
 2 files changed, 19 insertions(+)

diff --git a/Detectors/Calibration/testMacros/getRunParameters.cxx b/Detectors/Calibration/testMacros/getRunParameters.cxx
index c06926511c95d..d3f9b0a2ece69 100644
--- a/Detectors/Calibration/testMacros/getRunParameters.cxx
+++ b/Detectors/Calibration/testMacros/getRunParameters.cxx
@@ -53,6 +53,18 @@ void writeDurationToFile(long duration)
   fclose(fptr);
 }
 
+void writeSORToFile(long sor)
+{
+
+  FILE* fptr = fopen("SOR.txt", "w");
+  if (fptr == nullptr) {
+    LOGP(fatal, "ERROR: Could not open file to write SOR!");
+    return;
+  }
+  fprintf(fptr, "%ld", sor);
+  fclose(fptr);
+}
+
 void writeBFieldToFile(float b)
 {
 
@@ -165,6 +177,7 @@ int main(int argc, char* argv[])
       ir = -1.f;
       writeIRtoFile(ir);
       writeDurationToFile(run_O2duration);
+      writeSORToFile(tsSOR);
       return 0;
     }
   }
@@ -204,6 +217,7 @@ int main(int argc, char* argv[])
   }
   writeIRtoFile(ir);
   writeDurationToFile(duration);
+  writeSORToFile(tsSOR);
 
   return 0;
 }
diff --git a/prodtests/full_system_test.sh b/prodtests/full_system_test.sh
index 24215276fd463..8e252c5a8378f 100755
--- a/prodtests/full_system_test.sh
+++ b/prodtests/full_system_test.sh
@@ -81,6 +81,10 @@ fi
 
 [[ "$FIRSTSAMPLEDORBIT" -lt "$RUNFIRSTORBIT" ]] && FIRSTSAMPLEDORBIT=$RUNFIRSTORBIT
 
+# get run start time
+taskwrapper run_params.log o2-calibration-get-run-parameters -r $RUNNUMBER
+runStartTime=`cat SOR.txt`
+
 # allow skipping
 JOBUTILS_SKIPDONE=ON
 # potentially enable memory monitoring (independent on whether DPL or not)
@@ -162,6 +166,7 @@ taskwrapper collcontext.log o2-steer-colcontexttool \
   --maxCollsPerTF ${NEvents} \
   --orbitsEarly ${OrbitsBeforeTf} \
   --bcPatternFile ccdb \
+  --timestamp ${runStartTime} \
   ${QEDSPEC}
 
 # Include collision system for TPC loopers generation