FITS READ

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FITS READ

            LAS\FITS READ File[.fits]

        Read the File.fits FITS file to the CLASS Data Format. If the FITS  file
        has been written (see HELP FITS WRITE) using:
        -  the  SPECTRUM  mode,  the (unique) spectrum is loaded in the R buffer
          (memory only). If needed, you have to open an output file and WRITE it
          in order to save it on disk. BITPIX=-64 spectra are supported and con-
          verted to the internal 4 bytes real representation.
        - the INDEX mode, the (several) spectra  are  converted  and  implicitly
          written  to the current output file (it must have been opened before).
          The previous contents of the Class file is preserved (spectra are  ap-
          pended). REAL*8 SPECTRUM columns are not supported.

        This command can read 2 flavors of FITS files:
        - the  CLASS-FITS  format (i.e. the one written by FITS WRITE or by some
          3rd party softwares). See the CLASS programmer documentation  for  de-
          tails.
        - the Herschel-HIFI FITS format. See the dedicated memo for details.

        FITS cubes can be converted to the Gildas (not CLASS) Data Format by the
        command VECTOR\FITS, and then imported as a Class index by  the  command
        ANALYSE\LMV. See HELP V\FITS and HELP LMV for details.