Index: trunk/Ohana/src/opihi/lib.data/starfuncs.c
===================================================================
--- trunk/Ohana/src/opihi/lib.data/starfuncs.c	(revision 41341)
+++ trunk/Ohana/src/opihi/lib.data/starfuncs.c	(revision 41432)
@@ -73,6 +73,8 @@
   x = x / I;
   y = y / I;
-  FWHMx = 2.355*sqrt (fabs(x2 / I - x*x));
-  FWHMy = 2.355*sqrt (fabs(y2 / I - y*y));
+  double Mxx = x2 / I - x*x;
+  double Myy = y2 / I - y*y;
+  FWHMx = 2.355*sqrt (fabs(Mxx));
+  FWHMy = 2.355*sqrt (fabs(Myy));
 
   // fprintf (stderr, "Mxx, Myy: %f, %f\n", x2/I - x*x, y2/I - y*y);
@@ -87,4 +89,6 @@
   set_variable ("SXg", FWHMx);
   set_variable ("SYg", FWHMy);
+  set_variable ("MXXg", Mxx);
+  set_variable ("MYYg", Myy);
   set_variable ("SXYg", Sxy);
   set_variable ("Sg", sky);