Index: /trunk/icd-demo/def/init.CS.cell.hdu.mdc
===================================================================
--- /trunk/icd-demo/def/init.CS.cell.hdu.mdc	(revision 9851)
+++ /trunk/icd-demo/def/init.CS.cell.hdu.mdc	(revision 9851)
@@ -0,0 +1,24 @@
+# 3.6.6.8 Sky Cell Definition Metadata HDU
+#
+HEADER METADATA
+    EXTNAME     STR     SKY_CELL_TABLE
+    COMMENT     MULTI
+    COMMENT     STR     NULL
+    COMMENT     STR     This file defines the regions on the sky covered by
+    COMMENT     STR     each sky cell used by the IPP. For this sample, it
+    COMMENT     STR     is assumed each cell is a quadralateral defined by
+    COMMENT     STR     4 vertices on the sky.
+    COMMENT     STR     NULL
+#    CHECKSUM=                                      #   Checksum for this header
+#    DATASUM =                                      #   Checksum for table data
+    TYPE    TTYPE   TUNIT   TFORM
+    ID      TTYPE   NONE    J           # Sky cell identifier
+    RA1     TTYPE   DEGREES D           # RA of 1st cell vertex.
+    DEC1    TTYPE   DEGREES D           # DEC of 1st cell vertex.
+    RA2     TTYPE   DEGREES D           # RA of 2nd cell vertex.
+    DEC2    TTYPE   DEGREES D           # DEC of 2nd cell vertex.
+    RA3     TTYPE   DEGREES D           # RA of 34d cell vertex.
+    DEC3    TTYPE   DEGREES D           # DEC of 3rd cell vertex.
+    RA4     TTYPE   DEGREES D           # RA of 4th cell vertex.
+    DEC4    TTYPE   DEGREES D           # DEC of 4th cell vertex.
+END
Index: /trunk/icd-demo/def/init.CS.file.mdc
===================================================================
--- /trunk/icd-demo/def/init.CS.file.mdc	(revision 9851)
+++ /trunk/icd-demo/def/init.CS.file.mdc	(revision 9851)
@@ -0,0 +1,21 @@
+# from 3.6.2 Initialization Phase Products
+#
+# A Sky Cell definition consisting of a FITS file with
+#
+#   A primary HDU
+#
+#   A FITS extension with an HDU describing the format of the FITS table
+#   containing the cell number and a description of its spatial extent
+#   (IPP-PSPS Table 3.2).
+#
+#   A set of binary data records defining the sky cells and their boundaries.
+#
+
+# PDU
+HEADER METADATA
+    DATE    UTC     NULL # Number of sky cell extensions
+END
+
+TABLE MULTI
+TABLE STR init.CS.cell.hdu.mdc
+TABLE STR init.CS.cell.ext.mdc