Index: /trunk/doc/modules/CameraImages.tex
===================================================================
--- /trunk/doc/modules/CameraImages.tex	(revision 5484)
+++ /trunk/doc/modules/CameraImages.tex	(revision 5485)
@@ -307,4 +307,17 @@
 \code{false}.  If all the \code{parent} pointers were correct, the
 function shall return \code{true}.
+
+
+Each of the levels in the hierarchy have a place to hold a
+\code{p_pmHDU}, which is the disk representation of the image:
+\begin{datatype}
+typedef struct {
+    const char *extname;		// Extension name, if it corresponds to this level
+    psMetadata *header;			// The FITS header, if it corresponds to this level
+    psArray *images;			// The pixel data, if it corresponds to this level
+    psArray *masks;			// The mask data, if it corresponds to this level
+    psArray *weights;			// The weight data, if it corresponds to this level
+} p_pmHDU;
+\end{datatype}
 
 \subsection{Detector Coordinate Transformations}
Index: /trunk/doc/modules/ChangeLogSDRS.tex
===================================================================
--- /trunk/doc/modules/ChangeLogSDRS.tex	(revision 5484)
+++ /trunk/doc/modules/ChangeLogSDRS.tex	(revision 5485)
@@ -1,3 +1,3 @@
-%%% $Id: ChangeLogSDRS.tex,v 1.38 2005-11-03 03:20:46 price Exp $
+%%% $Id: ChangeLogSDRS.tex,v 1.39 2005-11-08 02:42:08 price Exp $
 
 \subsection{Changes from version 00 (16 August 2004) to version 01 (12 October 2004)}
@@ -170,3 +170,4 @@
   to act only on the region of the readout image specified by
   \code{CELL.TRIMSEC}
+\item Added \code{p_pmHDU}.
 \end{itemize}