Index: trunk/Mars/msignal/MExtractTimeAndCharge.cc
===================================================================
--- trunk/Mars/msignal/MExtractTimeAndCharge.cc	(revision 19122)
+++ trunk/Mars/msignal/MExtractTimeAndCharge.cc	(revision 19123)
@@ -245,4 +245,6 @@
     {
         const Int_t pixidx = pixel.GetPixelId();
+        if (pixidx>=fSignal->GetNumPixels())
+            continue;
 
         const Float_t *sig = fSignal->GetSamples(pixidx);