Name

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      FITS_HELP

Purpose

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      To print a summary of the primary data units and extensions in a
      FITS file.
;

Calling Sequence

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      FITS_HELP,filename_or_fcb

Inputs

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      FILENAME_OR_FCB - name of the fits file or the FITS Control Block (FCB)
              structure returned by FITS_OPEN. The file name is allowed
              to be gzip compressed (with a .gz extension)

Outputs

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      A summary of the FITS file is printed. For each extension, the values
      of the XTENSION, EXTNAME EXTVER EXTLEVEL BITPIX GCOUNT, PCOUNT NAXIS
      and NAXIS* keywords are displayed.
 

Examples

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      FITS_HELP,'myfile.fits'
      FITS_OPEN,'anotherfile.fits',fcb
      FITS_HELP,fcb

Procedures Used

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      FITS_OPEN, FITS_CLOSE

History

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      Written by: D. Lindler August, 1995
      Converted to IDL V5.0 W. Landsman September 1997
      Don't truncate EXTNAME values at 10 chars W. Landsman Feb. 2005
      Use V6.0 notation W. Landsman Jan 2012