Index: trunk/Ohana/src/addstar/doc/notes.txt
===================================================================
--- trunk/Ohana/src/addstar/doc/notes.txt	(revision 6763)
+++ trunk/Ohana/src/addstar/doc/notes.txt	(revision 10937)
@@ -1,2 +1,87 @@
+
+2007.01.04
+
+  Use of options.photcode:
+    - M_REFLIST: used to assign a photcode value to the loaded data
+    - M_REFCAT: used to select data from the reference of the given photcode
+    - M_FAKEIMAGE: used to assign a photcode value to the generated data
+    - M_RESORT: unused
+    - M_IMAGE: is used to override or supply the image header photcode
+	       * only valid for single chip runs
+
+  Re: MOSAIC_PHU
+      - the mosaic phu needs to have the time to enable the image/mosaic match
+
+      - NX,NY are used for plotting the mosaic outline.  the center of
+        the mosaic is 0,0, and the mosaic outline is drawn from
+        -NX/2,-NY/2 to NX/2,NY/2.  A problem: NX,NY in Image is using
+        a short int.  If the units of the FPA/TPA coords are microns, this overflows.
+	* change NX,NY to int?
+	* require the use of mm not microns?
+	* for GPC, NX,NY ~ 384000 um excluding gaps
+
+      - only the astrometry, time, and NX,NY are loaded for MOSAIC_PHU headers.
+
+2007.01.03
+
+  I am working on adding the ability to read MEF files containing
+  multiple tables and multiple image headers.  Here are the details:
+
+  SIMPLE CMP:
+    PHU:
+      NAXIS = 2 or
+      SIMPLE = FALSE or
+      TEXTMODE = TRUE (use option; global variable)
+
+  SIMPLE CMF:
+    PHU: 
+      NAXIS = 0
+      NAXIS1 exists, > 0
+      NAXIS2 exists, > 0
+    EXT:
+      EXTNAME = SMPDATA, PS1DATA, etc (defines layout)
+
+  SIMPLE MEF:
+    PHU: 
+      NAXIS = 0
+      NAXIS1 does not exist
+      NAXIS2 does not exist
+      &CTYPE[4] is not "-DIS"
+      EXTEND is true
+    EXT HEAD:
+      EXTTYPE = IMAGE
+      EXTNAME = image.name
+      EXTDATA = table.name
+    EXT DATA:
+      EXTTYPE = SMPDATA, PS1DATA, etc (defines layout)
+      EXTNAME = table.name
+      EXTHEAD = image.name
+
+  MOSAIC MEF:
+    PHU: 
+      NAXIS = 0
+      NAXIS1 does not exist
+      NAXIS2 does not exist
+      &CTYPE[4] is "-DIS"
+      EXTEND is true
+    EXT HEAD:
+      EXTTYPE = IMAGE
+      EXTNAME = image.name
+      EXTDATA = table.name
+    EXT DATA:
+      EXTTYPE = SMPDATA, PS1DATA, etc (defines layout)
+      EXTNAME = table.name
+      EXTHEAD = image.name
+
+  MOSAIC PHU:
+    PHU: 
+      NAXIS = 0
+      NAXIS1 does not exist
+      NAXIS2 does not exist
+      &CTYPE[4] is "-DIS"
+      NEXTEND = 0 or  
+      EXTEND is false
+
+    
 
 2006.04.02