Index: /trunk/MagicSoft/Mars/Changelog
===================================================================
--- /trunk/MagicSoft/Mars/Changelog	(revision 2241)
+++ /trunk/MagicSoft/Mars/Changelog	(revision 2242)
@@ -1,5 +1,16 @@
                                                  -*-*- END OF LINE -*-*-
 
+ 2003/06/27: Abelardo Moralejo
+
+  * mhistmc/MHMcCT1CollectionArea.cc
+    - Added comments, changed theta angle corresponding to first bin to
+      adapt it to new standard theta-bin definition. This was the reason
+      for the missing area at low theta.
+
+  * macros/CT1collectionArea.C
+    - Changed theta binning of collection area histogram.
+
  2003/06/26: Abelardo Moralejo
+
   * macros/CT1EgyEst.C
     - Added to the argument list of CT1EEst the binnings in theta
Index: /trunk/MagicSoft/Mars/mhistmc/MHMcCT1CollectionArea.cc
===================================================================
--- /trunk/MagicSoft/Mars/mhistmc/MHMcCT1CollectionArea.cc	(revision 2241)
+++ /trunk/MagicSoft/Mars/mhistmc/MHMcCT1CollectionArea.cc	(revision 2242)
@@ -240,4 +240,14 @@
   // events in each energy bin.
   //
+  // The theta angle with which the MC data (from D. Kranich) were produced 
+  // is not exactly the center of the theta bins we are using (the bin limits 
+  // should be 0.0, 17.5, 23.5, 29.5, 35.5, 42., 50.). The theta variable in 
+  // the MC root file has nevertheless been changed (W.Wittek) to correspond 
+  // to the centers of these bins. Only in the first bin is the difference big:
+  // the data were produced at theta = 15 degrees, whreas the bin center is at
+  // 8.75 degrees. Howeverm at such low z.a. the shower characteristics change 
+  // very slowly with theta.
+  //
+  //
 
   for (Int_t thetabin = 1; thetabin <= fHistAll->GetNbinsY(); thetabin++)
@@ -256,5 +266,5 @@
       numevts1 = 0; numevts2 = 0;
 
-      if (theta > 14 && theta < 16)   // 15 deg
+      if (theta > 8 && theta < 9)   // 8.75 deg
 	{
 	  r1 = 0.;
@@ -307,5 +317,5 @@
 	  numevts1 = 38415.;
 	}
-      else if (theta > 44 && theta < 46)  // 45 degrees
+      else if (theta > 45 && theta < 47)  // 46 degrees
 	{
 	  r1 = 0.;