***** 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