***** File DECOMP.TXT                                                         
                                                                              
    An MS-DOS program (PCDECLSP.EXE) based on the previous pixel algorithm    
is included in the SOFTWARE directory.   It reads the header and decompresses 
the associated data file.  The output is a FITS file with minimal header.  A  
complete FITS header can be reconstructed by using the original extension     
header which carries information about the compression technique as well as   
the original astrometry keywords and processing comments.                     
                                                                              
                          Sample FITS Header                                  
                                                                              
SIMPLE  =                    T  / BASIC FITS FORMAT                           
BITPIX  =                   16  / 2-BYTE TWO'S COMPL INTEGERS                 
NAXIS   =                    2  / NUMBER OF AXES                              
NAXIS1  =                 2048  / PIXELS PER ROW                              
NAXIS2  =                 2048  / LINES PER IMAGE                             
END