Index: trunk/psphot/src/psphotImageQuality.c
===================================================================
--- trunk/psphot/src/psphotImageQuality.c	(revision 20470)
+++ trunk/psphot/src/psphotImageQuality.c	(revision 20471)
@@ -29,4 +29,5 @@
         // ??
         if (source->type != PM_SOURCE_TYPE_STAR || !(source->mode & PM_SOURCE_MODE_PSFSTAR)) {
+            psTrace("psphot", 10, "Ignoring source for image quality because not a good star");
             continue;
         }
@@ -34,4 +35,5 @@
         pmMoments *moments = source->moments;
         if (!moments) {
+            psTrace("psphot", 10, "Ignoring source for image quality because no moments");
             continue;
         }