Index: trunk/psphot/src/psphotMagnitudes.c
===================================================================
--- trunk/psphot/src/psphotMagnitudes.c	(revision 25383)
+++ trunk/psphot/src/psphotMagnitudes.c	(revision 25755)
@@ -71,4 +71,5 @@
             PS_ARRAY_ADD_SCALAR(job->args, photMode, PS_TYPE_S32);
             PS_ARRAY_ADD_SCALAR(job->args, maskVal,  PS_TYPE_IMAGE_MASK);
+            PS_ARRAY_ADD_SCALAR(job->args, markVal,  PS_TYPE_IMAGE_MASK);
             PS_ARRAY_ADD_SCALAR(job->args, 0,        PS_TYPE_S32); // this is used as a return value for nAp
 
@@ -102,5 +103,5 @@
                 fprintf (stderr, "error with job\n");
             } else {
-                psScalar *scalar = job->args->data[7];
+                psScalar *scalar = job->args->data[8];
                 Nap += scalar->data.S32;
             }
@@ -127,9 +128,26 @@
     pmSourcePhotometryMode photMode = PS_SCALAR_VALUE(job->args->data[5],S32);
     psImageMaskType maskVal         = PS_SCALAR_VALUE(job->args->data[6],PS_TYPE_IMAGE_MASK_DATA);
+    psImageMaskType markVal         = PS_SCALAR_VALUE(job->args->data[7],PS_TYPE_IMAGE_MASK_DATA);
 
     for (int i = 0; i < sources->n; i++) {
         pmSource *source = (pmSource *) sources->data[i];
-        status = pmSourceMagnitudes (source, psf, photMode, maskVal);
+
+        // replace object in image
+        if (source->tmpFlags & PM_SOURCE_TMPF_SUBTRACTED) {
+            pmSourceAdd (source, PM_MODEL_OP_FULL, maskVal);
+        }
+
+	// clear the mask bit and set the circular mask pixels
+	psImageMaskPixels (source->maskObj, "AND", PS_NOT_IMAGE_MASK(markVal));
+	psImageKeepCircle (source->maskObj, source->peak->x, source->peak->y, source->apRadius, "OR", markVal);
+
+        status = pmSourceMagnitudes (source, psf, photMode, maskVal); // maskVal includes markVal
         if (status && isfinite(source->apMag)) Nap ++;
+
+	// clear the mask bit 
+	psImageMaskPixels (source->maskObj, "AND", PS_NOT_IMAGE_MASK(markVal));
+
+        // re-subtract the object, leave local sky
+        pmSourceSub (source, PM_MODEL_OP_FULL, maskVal);
 
         if (backModel) {
@@ -155,5 +173,5 @@
 
     // change the value of a scalar on the array (wrap this and put it in psArray.h)
-    psScalar *scalar = job->args->data[7];
+    psScalar *scalar = job->args->data[8];
     scalar->data.S32 = Nap;