Preliminary Requirements

Prior to running the program, a number of environment variables should be set. These are normally set by default by running the /home/sage0/programs/.egretrc file from the user's .cshrc file. The specific environment variables that are needed and their respective default values are:

   EGRET_DIR .......................... /analysis1
   EGRET_PROGRAMS ..................... /home/sage0/programs
   FITS_DIR ........................... User writable FITS directory

To manually set an environment variable, use the setenv command e.g.

setenv FITS_DIR ~albert/fits

The program will use these variables to access executables and I/O files as follows. It must also be able to write the namelist.map file under the current directory to store the user input in a namelist and the output maps in the FITS_DIR directory.

   EGRET_DIR/bin/addmap ................. User input program
   EGRET_DIR/bin/addmap.exe ............. Main program
   FITS_DIR/counts.v*.g* ................ FITS counts file
   FITS_DIR/exposr.v*.g* ................ FITS exposure file
   FITS_DIR/intens.v*.g* ................ FITS intensity file
   EGRET_PROGRAMS/sequence/fits.seq ..... Sequence file for the FITS file names
   addmap.list .......................... Program report file
   namelist.add ......................... Namelist file