Index: trunk/ippconfig/gpc1/format_raw.config
===================================================================
--- trunk/ippconfig/gpc1/format_raw.config	(revision 17911)
+++ trunk/ippconfig/gpc1/format_raw.config	(revision 18214)
@@ -548,5 +548,5 @@
         CELL.READNOISE  F32     15.0
         CELL.READDIR    S32     1
-        CELL.BAD        S32     0
+        CELL.BAD        S32     -100
 #       CELL.TIME       STR     MJD-OBS
 #       CELL.TIMESYS    STR     TIMESYS