Here are instructions for using the three programs in the companion zip file. If there are any questions I can be reached at: foxd@silver.ucs.indiana.edu or drop me a SASE at: Daniel B. Fox P.O.Box 443 Bloomington, IN 47402-0443 Enjoy! CONVERT.EXE The convert program does a conversion of a fits file to a 256 color bitmap. if no output file is given then the fits data is automatically scaled and displayed to the screen. If an output file is given, then the bitmap is saved to the file as a 256 color Windows BMP file. The fits data is automatically scaled to an integer value of 0 to 255. The scaling is linear unless a switch is used. The convert program has three switches which do the following: /E does an exponential scaling of the fits data. /L does a logrithmetic scaling of the fits data. /S does a summation of exponential and logrithmetic scaling. Example: convert/s mercury.fit mercury.bmp would take a FITS file called mercury.fit and output a Windows BMP file called mercury.bmp which would be scaled to bring out detail in both the minimum and maximum intensities. HEADER.EXE This program displays the header information in a fits file. If an output file is specified then the header information is sent to it. The spacebar scrolls the data and the "Q" key ends the program. Example: header mercury.fit mercury.txt will take the header information from a file called mercury.fit and save it to a file called mercury.txt. mercury.txt could then be read by a text editor, printed out or whatever. TOPOG.EXE This program generates a topographical map of a 256 color Windows BMP file. Care should be taken in the selection of input files since too much variation in the data will generate a black smear rather than a topo map. Example: topog mercury.bmp topograf.bmp will take the mercury.bmp file and do a topo map of the data and save it as topograf.bmp.