Index: trunk/ippScripts/scripts/stack_skycell.pl
===================================================================
--- trunk/ippScripts/scripts/stack_skycell.pl	(revision 13748)
+++ trunk/ippScripts/scripts/stack_skycell.pl	(revision 13989)
@@ -170,6 +170,6 @@
 
 # Add the processed file to the database
-my $bg = ($stats->bg_mean() or 'NAN');
-my $bg_stdev = ($stats->bg_stdev() or 'NAN');
+my $bg       = $stats->bg_mean();
+my $bg_stdev = $stats->bg_stdev();
 
 unless ($no_update) {