The fors_flatfield recipe

fors_flatfield

Synopsis

Flat field correction of input frame

Description

This recipe is used to divide the input frame by the normalised flat field frame produced by recipe fors_normalise_flat. The input frame must be already bias subtracted (e.g., by recipe fors_remove_bias).

In the table below the MXU acronym can be alternatively read as MOS and LSS.

Input files

DO category:               Type:       Explanation:         Required:
SCIENCE_UNBIAS_MXU
or STANDARD_UNBIAS_MXU     Raw         Bias subtracted frame   Y
MASTER_NORM_FLAT_MXU       Calib       Normalised flat frame   Y

Output files

DO category:               Data type:  Explanation:
SCIENCE_UNFLAT_MXU
or STANDARD_UNFLAT_MXU     FITS image  Flat field corrected frame

Constructor

cpl.Recipe("fors_flatfield")

Create an object for the recipe fors_flatfield.

import cpl
fors_flatfield = cpl.Recipe("fors_flatfield")

See also

cpl.Recipe for more information about the recipe object.

Bug reports

Please report any problems to Carlo Izzo. Alternatively, you may send a report to the ESO User Support Department.

Copyright

This file is currently part of the FORS Instrument Pipeline Copyright (C) 2002-2010 European Southern Observatory

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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Code author: Carlo Izzo <usd-help@eso.org>