Index: trunk/icd-demo/def/P4D.file.txt
===================================================================
--- trunk/icd-demo/def/P4D.file.txt	(revision 8426)
+++ trunk/icd-demo/def/P4D.file.txt	(revision 9127)
@@ -2,31 +2,13 @@
 # Keywords for P4D Frame Descriptor HDU
 HEADER METADATA
-  TELESCOP STR  PS1                 # Telescope name
-  TELNUM   S32                    1 # Telescope number
-  CAMERA   STR  GPC1                # Camera name
-  CAMERAID S32                    1 # Camera number
-  OBS_ID   STR  UnknownFormat       # Observation identifier
-  ANALVER  S32                    0 # Analysis version number
-  P1RECIP  STR              Basic.0 # Phase 1 recipe
-  P2RECIP  STR               GPC.01 # Phase 2 recipe
-  P3RECIP  STR               GPC.00 # Phase 3 recipe
-  NFILES   F32                    1 # Number of associated files ???
-  CERROR   F32               10.000 # Scatter in astrometry solution (MAS)
-  PHOT_CS  F32                0.007 # Scater in photometric solution (mag)
-  MJDATE   F64        10000.0011223 # MJD at start of exposure
-  EXPTIME  F32                30.01 # Exposure time (seconds)
-  FILTER   STR  r.12345             # Filter identification string
-  FILTERID F32                    2 # Filter holder position
-  AIRMASS  F32                1.012 # Airmass at start of exposure
-  RA       F32            10.000000 # Telescope boresight in RA (degrees)
-  DEC      F32            -10.00000 # Telescope boresight in DEC (degrees)
+  NCELLS  S32                2 # Number of sky cell extensions
 END
 
-# the file contains table data for each chip:
+# the file contains table data for each cell:
 TABLE MULTI
-TABLE STR P4D.chip0.psf.txt
-TABLE STR P4D.chip0.alt.txt
-TABLE STR P4D.chip0.low.txt
-TABLE STR P4D.chip1.psf.txt
-TABLE STR P4D.chip1.alt.txt
-TABLE STR P4D.chip1.low.txt
+TABLE STR P4D.cell0.hdu.txt
+TABLE STR P4D.cell0.psf.txt
+TABLE STR P4D.cell0.alt.txt
+TABLE STR P4D.cell1.hdu.txt
+TABLE STR P4D.cell1.psf.txt
+TABLE STR P4D.cell1.alt.txt