Index: trunk/psModules/src/objects/pmSource.c
===================================================================
--- trunk/psModules/src/objects/pmSource.c	(revision 26893)
+++ trunk/psModules/src/objects/pmSource.c	(revision 27531)
@@ -46,5 +46,5 @@
     psFree(tmp->maskView);
     psFree(tmp->modelFlux);
-    psFree(tmp->psfFlux);
+    psFree(tmp->psfImage);
     psFree(tmp->moments);
     psFree(tmp->modelPSF);
@@ -52,4 +52,6 @@
     psFree(tmp->modelFits);
     psFree(tmp->extpars);
+    psFree(tmp->moments);
+    psFree(tmp->diffStats);
     psFree(tmp->blends);
     psTrace("psModules.objects", 10, "---- end ----\n");
@@ -68,5 +70,5 @@
     psFree (source->maskView);
     psFree (source->modelFlux);
-    psFree (source->psfFlux);
+    psFree (source->psfImage);
 
     source->pixels = NULL;
@@ -75,5 +77,5 @@
     source->maskView = NULL;
     source->modelFlux = NULL;
-    source->psfFlux = NULL;
+    source->psfImage = NULL;
     return;
 }
@@ -103,5 +105,5 @@
     source->maskView = NULL;
     source->modelFlux = NULL;
-    source->psfFlux = NULL;
+    source->psfImage = NULL;
     source->moments = NULL;
     source->blends = NULL;
@@ -113,9 +115,13 @@
     source->tmpFlags = 0;
     source->extpars = NULL;
+    source->diffStats = NULL;
+
     source->region = psRegionSet(NAN, NAN, NAN, NAN);
     psMemSetDeallocator(source, (psFreeFunc) sourceFree);
 
     // default values are NAN
-    source->psfMag = NAN;
+    source->psfMag     = NAN;
+    source->psfFlux    = NAN;
+    source->psfFluxErr = NAN;
     source->extMag = NAN;
     source->errMag = NAN;
@@ -259,7 +265,7 @@
         mySource->modelFlux = NULL;
 
-        // drop the old psfFlux pixels and force the user to re-create
-        psFree (mySource->psfFlux);
-        mySource->psfFlux = NULL;
+        // drop the old psfImage pixels and force the user to re-create
+        psFree (mySource->psfImage);
+        mySource->psfImage = NULL;
     }
     return extend;
@@ -873,11 +879,11 @@
 
     // if we already have a cached image, re-use that memory
-    source->psfFlux = psImageCopy (source->psfFlux, source->pixels, PS_TYPE_F32);
-    psImageInit (source->psfFlux, 0.0);
+    source->psfImage = psImageCopy (source->psfImage, source->pixels, PS_TYPE_F32);
+    psImageInit (source->psfImage, 0.0);
 
     // in some places (psphotEnsemble), we need a normalized version
     // in others, we just want the model.  which is more commonly used?
-    // psfFlux always has unity normalization (I0 = 1.0)
-    pmModelAdd (source->psfFlux, source->maskObj, source->modelPSF, PM_MODEL_OP_FULL | PM_MODEL_OP_NORM, maskVal);
+    // psfImage always has unity normalization (I0 = 1.0)
+    pmModelAdd (source->psfImage, source->maskObj, source->modelPSF, PM_MODEL_OP_FULL | PM_MODEL_OP_NORM, maskVal);
     return true;
 }