NAME

Astro::FITS::HdrTrans::UKIRT - Base class for translation of UKIRT instruments

SYNOPSIS

  use Astro::FITS::HdrTrans::UKIRT;

DESCRIPTION

This class provides a generic set of translations that are common to instrumentation from the United Kingdom Infrared Telescope. It should not be used directly for translation of instrument FITS headers.

COMPLEX CONVERSIONS

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)

to_COORDINATE_TYPE

Converts the EQUINOX FITS header into B1950 or J2000, depending on equinox value, and sets the COORDINATE_TYPE generic header.

  $class->to_COORDINATE_TYPE( \%hdr );

from_COORDINATE_TYPE

A null translation since EQUINOX is translated separately.

to_RA_BASE

Converts the decimal hours in the FITS header RABASE into decimal degrees for the generic header RA_BASE.

from_RA_BASE

Converts the decimal degrees in the generic header RA_BASE into decimal hours for the FITS header RABASE.

  %fits = $class->from_RA_BASE( \%generic );

REVISION

 $Id: UKIRT.pm,v 1.1 2005/04/06 03:42:10 timj Exp $

SEE ALSO

Astro::FITS::HdrTrans, Astro::FITS::HdrTrans::Base

AUTHOR

Brad Cavanagh <b.cavanagh@jach.hawaii.edu>, Tim Jenness <t.jenness@jach.hawaii.edu>.

COPYRIGHT

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