Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.

The IRAF software is publicly available, but is NOT in the public domain.
The difference is that copyrights granting rights for unrestricted use and
redistribution have been placed on all of the software to identify its authors.
You are allowed and encouraged to take this software and use it as you wish,
subject to the restrictions outlined below.

Permission to use, copy, modify, and distribute this software and its
documentation is hereby granted without fee, provided that the above copyright
notice appear in all copies and that both that copyright notice and this
permission notice appear in supporting documentation, and that references to
the Association of Universities for Research in Astronomy Inc. (AURA),
the National Optical Astronomy Observatories (NOAO), or the Image Reduction
and Analysis Facility (IRAF) not be used in advertising or publicity
pertaining to distribution of the software without specific, written prior
permission from NOAO.  NOAO makes no representations about the suitability
of this software for any purpose.  It is provided "as is" without express or
implied warranty.

NOAO DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NOAO
BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 
CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
