fors_flatfield (7)

esorex fors_flatfield [OPTIONS] FILE.sof

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

Note that it is possible to create a configuration file containing these options, along with suitable default values. Please refer to the details provided by the 'esorex --help' command.

The full documentation for the fors pipeline can be downloaded as a PDF file using the following URL:

• ftp://ftp.eso.org/pub/dfs/pipelines/fors/fors-pipeline-manual-4.9.pdf

An overview over the existing ESO pipelines can be found on the web page http://www.eso.org/sci/software/pipelines/.

Basic documentation about the EsoRex program can be found at the esorex (1) man page.

It is possible to call the pipelines from python using the python-cpl package. See http://packages.python.org/python-cpl/index.html for further information.

The other recipes of the fors pipeline are fors_wave_calib_lss(7), fors_img_sky_flat(7), fors_resample(7), fors_config(7), fors_extract_objects(7), fors_calib(7), fors_wave_calib(7), fors_detect_objects(7), fors_pmos_science(7), fors_extract_slits(7), test_hough(7), fors_img_screen_flat(7), fors_extract(7), fors_remove_bias(7), fors_subtract_sky(7), fors_normalise_flat(7), montecarlo(7), fors_photometry(7), fors_zeropoint(7), fors_dark(7), fors_subtract_sky_lss(7), fors_trace_flat(7), fors_img_science(7), fors_detect_spectra(7), fors_sumflux(7), fors_pmos_extract(7), fors_align_sky_lss(7), fors_bias(7), fors_align_sky(7), fors_pmos_calib(7), fors_spec_mflat(7), fors_science(7)

fors_flatfield 5.0.0

Carlo Izzo <[email protected]>

Please report any problems to [email protected]. Alternatively, you may send a report to the ESO User Support Department <[email protected]>.

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