Index: trunk/psModules/src/objects/pmSource.c
===================================================================
--- trunk/psModules/src/objects/pmSource.c	(revision 14220)
+++ trunk/psModules/src/objects/pmSource.c	(revision 14321)
@@ -6,6 +6,6 @@
  *  @author EAM, IfA: significant modifications.
  *
- *  @version $Revision: 1.31 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2007-06-26 19:27:37 $
+ *  @version $Revision: 1.32 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2007-07-20 00:23:22 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -745,6 +745,9 @@
 
     // XXX EAM : these values can be negative, so we need to limit the range
-    source->moments->Sx = sqrt(PS_MAX(X2/Sum - PS_SQR(x), 0));
-    source->moments->Sy = sqrt(PS_MAX(Y2/Sum - PS_SQR(y), 0));
+    // XXX EAM : make the use of this consistent: should this be the second moment or sqrt?
+    // source->moments->Sx = sqrt(PS_MAX(X2/Sum - PS_SQR(x), 0));
+    // source->moments->Sy = sqrt(PS_MAX(Y2/Sum - PS_SQR(y), 0));
+    source->moments->Sx = PS_MAX(X2/Sum - PS_SQR(x), 0);
+    source->moments->Sy = PS_MAX(Y2/Sum - PS_SQR(y), 0);
 
     psTrace ("psModules.objects", 4,