Index: trunk/ippconfig/megacam_alternate/psphot.config
===================================================================
--- trunk/ippconfig/megacam_alternate/psphot.config	(revision 7532)
+++ trunk/ippconfig/megacam_alternate/psphot.config	(revision 7745)
@@ -1,7 +1,7 @@
 
-SAVE.BACKMDL	BOOL 	TRUE
-SAVE.BACKGND	BOOL 	TRUE
-SAVE.BACKSUB	BOOL 	TRUE
-SAVE.RESID	BOOL 	TRUE
+#SAVE.BACKMDL	BOOL 	TRUE
+#SAVE.BACKGND	BOOL 	TRUE
+#SAVE.BACKSUB	BOOL 	TRUE
+#SAVE.RESID	BOOL 	TRUE
 #SAVE.PSF	BOOL 	TRUE
 #LOAD.PSF	BOOL 	FALSE
@@ -11,4 +11,7 @@
 GAIN                STR  HD:GAIN         # electrons / DN
 ZERO_POINT          F32  25.000          # zero point used by DVO
+
+# un-comment this if a bias / background has been subtracted
+BACKGROUND.LEVEL    F32  100.0           # subtracted background level:
 
 # background model : 
@@ -22,5 +25,5 @@
 YMAX                F32   -2        	 # maximum valid y-coord
 SATURATION          F32  50000     	 # saturation level on this chip
-MIN_VALID_PIXEL     F32      1     	 # saturation level on this chip
+MIN_VALID_PIXEL     F32   -20     	 # saturation level on this chip
 
 # image statistics parameters
@@ -30,5 +33,5 @@
 PEAKS_SMOOTH_SIGMA  F32  1.0       	 # smoothing kernel sigma in pixels
 PEAKS_SMOOTH_NSIGMA F32  3.0   	   	 # smoothing kernel width in sigmas
-PEAKS_NSIGMA_LIMIT  F32  25.0 	   	 # peak significance threshold
+PEAKS_NSIGMA_LIMIT  F32  3.0 	   	 # peak significance threshold
 
 # basic object statistics