Index: trunk/ippScripts/scripts/addstar_run.pl
===================================================================
--- trunk/ippScripts/scripts/addstar_run.pl	(revision 39044)
+++ trunk/ippScripts/scripts/addstar_run.pl	(revision 39045)
@@ -329,4 +329,5 @@
 	    # temporary hard-wired info
 	    my $zeroPointOption = "CHIP_HEADER";
+	    my $zeroPointKeyword = "ZPT_OBS";
 	    if (($camdir =~ /gpc1/) && ($stage =~ /staticsky/)) {
 		$zeroPointOption = "NOMINAL";
@@ -334,4 +335,7 @@
 	    if (($camdir =~ /gpc1/) && ($stage =~ /cam/)) {
 		$zeroPointOption = "PHU_HEADER";
+	    }		
+	    if ($stage eq "diff") {
+		$zeroPointKeyword = "FPA.ZP";
 	    }		
 
@@ -345,4 +349,5 @@
 		$command .= " -D CATDIR $minidvodb_path";
 		$command .= " -D ZERO_POINT_OPTION $zeroPointOption";
+		$command .= " -D ZERO_POINT_KEYWORD $zeroPointKeyword";
 		$command .= " $realFile";
 		$command .= " -use-name $fpaObjects"; # DVO wants the neb-name as a file reference