Astro::FITS::HdrTrans::CGS4 - UKIRT CGS4 translations
use Astro::FITS::HdrTrans::CGS4; %gen = Astro::FITS::HdrTrans::CGS4->translate_from_FITS( %hdr );
This class provides a generic set of translations that are specific to the CGS4 spectrometer of the United Kingdom Infrared Telescope.
The name of the instrument required to match (case insensitively) against the INSTRUME/INSTRUMENT keyword to allow this class to translate the specified headers. Called by the default can_translate method.
$inst = $class->this_instrument();
Returns "CGS4".
These methods are more complicated than a simple mapping. We have to provide both from- and to-FITS conversions All these routines are methods and the to_ routines all take a reference to a hash and return the translated value (a many-to-one mapping) The from_ methods take a reference to a generic hash and return a translated hash (sometimes these are many-to-many)
Checks the FILTER FITS header keyword for the existance of 'prism'. If 'prism' is found, then the POLARIMETRY generic header is set to 1, otherwise 0.
The header keyword for the Dec telescope offset changed from DECOFF to TDECOFF on 20050315, so switch on this date to use the proper header.
The header keyword for the Dec telescope offset changed from DECOFF to TDECOFF on 20050315, so return the proper keyword depending on observation date.
The header keyword for the RA telescope offset changed from RAOFF to TRAOFF on 20050315, so switch on this date to use the proper header.
The header keyword for the RA telescope offset changed from RAOFF to TRAOFF on 20050315, so return the proper keyword depending on observation date.
Converts FITS header values in DETINCR and DETNINCR to a single descriptive string.
$Id: CGS4.pm,v 1.28 2005/04/06 21:26:14 timj Exp $
Astro::FITS::HdrTrans, Astro::FITS::HdrTrans::UKIRT.
Brad Cavanagh <b.cavanagh@jach.hawaii.edu>, Tim Jenness <t.jenness@jach.hawaii.edu>.
Copyright (C) 2003-2005 Particle Physics and Astronomy Research Council. All Rights Reserved.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place,Suite 330, Boston, MA 02111-1307, USA
