NAME

Astro::FITS::HdrTrans::FITS - Standard FITS header translations

SYNOPSIS

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

  %gen = Astro::FITS::HdrTrans::FITS->translate_from_FITS( %hdr );

DESCRIPTION

This class provides a generic set of translations that are specific to the (few) headers that are commonly standardised across most FITS files.

Mainly deals with World Coordinate Systems and headers defined in the FITS standards papers.

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_UTDATE

Converts the DATE-OBS keyword into a Time::Piece object corresponding to the date of observation (without the time).

There is no corresponding from_UTDATE method since there is no corresponding FITS keyword.

to_UTSTART

Converts UT date in DATE-OBS header into Time::Piece object.

from_UTSTART

Returns the starting observation time in FITS restricted ISO8601 format: YYYY-MM-DDThh:mm:ss.

to_UTEND

Converts UT date in DATE-END header into Time::Piece object.

from_UTEND

Returns the ending observation time in FITS restricted ISO8601 format: YYYY-MM-DDThh:mm:ss.

REVISION

 $Id: FITS.pm,v 1.1 2005/04/06 03:42:09 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