Index: trunk/ippScripts/scripts/diff_skycell.pl
===================================================================
--- trunk/ippScripts/scripts/diff_skycell.pl	(revision 15395)
+++ trunk/ippScripts/scripts/diff_skycell.pl	(revision 16247)
@@ -51,7 +51,8 @@
    [   
        #          PPSTATS KEYWORD         STATISTIC          DIFFTOOL FLAG
-       { name => "ROBUST_MEDIAN",   type => "mean", flag => "-bg",        dtype => "float" },
-       { name => "ROBUST_STDEV",    type => "rms",  flag => "-bg_stdev",  dtype => "float" },
-       { name => "GOOD_PIXEL_FRAC", type => "mean", flag => "-good_frac", dtype => "float" },
+       { name => "ROBUST_MEDIAN",   type => "mean", flag => "-bg",         dtype => "float" },
+       { name => "ROBUST_STDEV",    type => "rms",  flag => "-bg_stdev",   dtype => "float" },
+#      { name => "DT_DIFF",         type => "sum",  flag => "-dtime_diff", dtype => "float" },
+       { name => "GOOD_PIXEL_FRAC", type => "mean", flag => "-good_frac",  dtype => "float" },
    ];
 my $stats = PS::IPP::Metadata::Stats->new($STATS); # Stats parser