Index: trunk/ippconfig/megacam/format_spliced.config
===================================================================
--- trunk/ippconfig/megacam/format_spliced.config	(revision 8945)
+++ trunk/ippconfig/megacam/format_spliced.config	(revision 10090)
@@ -1,3 +1,4 @@
-# The spliced MegaCam data is stored in single extensions for each chip
+# "mcshort" is a MegaCam camera with only the central six chips --- it's faster than the entire FPA.
+# The spliced MecaCam data is stored in single extensions for each chip
 
 # How to recognise this type
@@ -9,9 +10,10 @@
 END
 
-# How to read this data
 FILE	METADATA
+	# How to read this data
 	PHU		STR	FPA	# The FITS file represents an entire FPA
 	EXTENSIONS	STR	CHIP	# The extensions represent chips
 	FPA.NAME	STR	EXPNUM	# A PHU keyword for unique identifier
+	CHIP.NAME	STR	EXTNAME	# An extension keyword for unique identifie
 END
 
@@ -60,5 +62,4 @@
 CELLS		METADATA
 	left		METADATA
-		CELL.NAME		STR	LeftSide
 		CELL.BIASSEC.SOURCE	STR	HEADER
 		CELL.TRIMSEC.SOURCE	STR	HEADER
@@ -66,8 +67,9 @@
 		CELL.TRIMSEC		STR	TSECA
 		CELL.X0			S32	0
+		CELL.GAIN.SOURCE	STR	HEADER
+		CELL.GAIN		STR	GAINA
 	END
 
 	right		METADATA
-		CELL.NAME		STR	RightSide
 		CELL.BIASSEC.SOURCE	STR	HEADER
 		CELL.TRIMSEC.SOURCE	STR	HEADER
@@ -75,4 +77,6 @@
 		CELL.TRIMSEC		STR	TSECB
 		CELL.X0			S32	1024
+		CELL.GAIN.SOURCE	STR	HEADER
+		CELL.GAIN		STR	GAINB
 	END
 END
@@ -88,4 +92,7 @@
         FPA.RADECSYS    STR     RADECSYS
 	FPA.OBSTYPE	STR	OBSTYPE
+	FPA.OBJECT	STR	CMMTOBS
+	FPA.TIME	STR	MJD-OBS
+	FPA.TIMESYS	STR	TIMESYS
 	FPA.ALT		STR	TELALT
 	FPA.AZ		STR	TELAZ
@@ -93,8 +100,8 @@
         CELL.EXPOSURE   STR     EXPTIME
         CELL.DARKTIME   STR     DARKTIME
-        CELL.GAIN       STR     GAIN
         CELL.READNOISE  STR     RDNOISE
         CELL.SATURATION STR     SATURATE
 	CELL.TIME	STR	MJD-OBS
+	CELL.TIMESYS	STR	TIMESYS
         CELL.XBIN       STR     CCDBIN1
         CELL.YBIN       STR     CCDBIN2
@@ -103,12 +110,12 @@
 # Default PS concepts that may be specified by value
 DEFAULTS        METADATA
-        FPA.CAMERA              STR     MEGACAM
+	FPA.TIMESYS		STR	UTC
 	CELL.READDIR		S32	1		# Cell is read in x direction
         CELL.BAD                S32     0
-	CELL.TIMESYS		STR	UTC
 	CELL.XPARITY		S32	1
 	CELL.YPARITY		S32	1
 	CELL.Y0			S32	0
-
+	CHIP.X0.DEPEND		STR	CHIP.NAME
+	CHIP.X0		METADATA
 	CHIP.X0.DEPEND		STR	CHIP.NAME
 	CHIP.X0		METADATA
@@ -248,4 +255,5 @@
 	FPA.RA		STR	HOURS
 	FPA.DEC		STR	DEGREES
+	FPA.TIME	STR	MJD
 	CELL.TIME	STR	MJD
 END