Index: /trunk/Mars/fact/analysis/callisto_data.C
===================================================================
--- /trunk/Mars/fact/analysis/callisto_data.C	(revision 18146)
+++ /trunk/Mars/fact/analysis/callisto_data.C	(revision 18147)
@@ -117,5 +117,8 @@
         TGraph g(delays);
         if (g.GetN()!=1440)
+        {
+            gLog << err << "Error reading file " << delays << endl;
             return 41;
+        }
 
         timecam.SetDelays(g);