From version 2, the KMOS pipeline uses molecfit. While molecfit itself
is GPL, it depends on radiative transfer code LNFL and LBLRTM which
are not DFSG free (and as being not GPL conform contradict the
GPL). Both packages are research-only:

> The LNFL software you are downloading has been copyrighted by
> Atmospheric and Environmental Research, Inc. (AER) and is proprietary
> to AER. AER grants USER the right to download, install, use and copy
> this software for scientific and research purposes only.

This makes it impossible to include molecfit in Debian. Consequently,
the molecfit recipes are disabled.

 -- Ole Streicher <olebole@debian.org>, Thu,  3 May 2018 15:18:55 +0200

Due to their size, static calibration files are not included. Installing the
"calib" subpackage will download the corresponding files from the ESO archive.

 -- Ole Streicher <olebole@debian.org>  Fri, 13 Sep 2013 18:50:00 +0200
