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FITS
LAS\FITS READ file[.fits]
LAS\FITS WRITE file[.fits] /MODE SPECTRUM|INDEX [/BITS nbits]
[/CHECK]
Either READ the file.fits FITS file to the CLASS internal data format.
Please note that not all FITS files may be read by CLASS, and some head-
er information might be incomplete when doing so.
Or WRITE the file.fits FITS file from the CLASS internal data format.
/MODE is a mandatory argument which can take the following values:
SPECTRUM a simple FITS file is written from the current spectrum
in memory is written.
INDEX a FITS BINTABLE is written from all the spectra in current
index. The USER MUST make sure that all index spectra are
consistent (same source, same line, same frequency setup,
...)
The number of bits per intensity value used when writing the FITS file
may be controlled through the /NBITS optional argument. It can be: 16 or
I*2(2 bits integer), 32 or I*4 (4 bits integer) or -32 or R*4 (4 bits
real).
The default mode and number of bits can also be specified through the
commands
SET FITS BITS nbits
SET FITS MODE SPECTRUM|INDEX
/CHECK will print the FITS HEADER on the terminal.
Gildas manager
2011-09-07