Index: trunk/MagicSoft/Simulation/Detector/include-CORSIKA/COREventHeader.hxx
===================================================================
--- trunk/MagicSoft/Simulation/Detector/include-CORSIKA/COREventHeader.hxx	(revision 420)
+++ trunk/MagicSoft/Simulation/Detector/include-CORSIKA/COREventHeader.hxx	(revision 421)
@@ -204,4 +204,8 @@
   }
 
+  // get the zFirstInteraction position
+  inline Float_t get_firstInt () {
+    return ( zFirstInt ) ; 
+  }
 
   // show the seeds in the console