NAME

       fors_bias - Compute the master bias frame

SYNOPSIS

       esorex fors_bias [OPTIONS] FILE.sof

DESCRIPTION

       This  recipe  is used to combine input raw BIAS frames into a master bias frame. The overscan regions, if
       present, are removed from the result.

       Input files:

         DO category:               Type:       Explanation:         Required:
         BIAS                       Raw         Bias frame              Y

       Output files:

         DO category:               Data type:  Explanation:
         MASTER_BIAS                FITS image  Master bias frame

OPTIONS

       --stack_method <str>
              Frames combination method (str; default: ´minmax´). The full name of this option  for  the  EsoRex
              configuration file is fors.fors_bias.stack_method [default = minmax].

       --minrejection <int>
              Number  of  lowest  values  to be rejected (int; default: 1). The full name of this option for the
              EsoRex configuration file is fors.fors_bias.minrejection [default = 1].

       --maxrejection <int>
              Number of highest values to be rejected (int; default: 1). The full name of this  option  for  the
              EsoRex configuration file is fors.fors_bias.maxrejection [default = 1].

       --klow <float>
              Low  threshold in ksigma method (float; default: 3.0). The full name of this option for the EsoRex
              configuration file is fors.fors_bias.klow [default = 3.0].

       --khigh <float>
              High threshold in ksigma method (float; default: 3.0). The full name of this option for the EsoRex
              configuration file is fors.fors_bias.khigh [default = 3.0].

       --kiter <int>
              Max  number  of  iterations in ksigma method (int; default: 999). The full name of this option for
              the EsoRex configuration file is fors.fors_bias.kiter [default = 999].

       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.

SEE ALSO

       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
       https://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
       https://packages.python.org/python-cpl/index.html for further information.

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

VERSION

       fors_bias 5.5.7

AUTHOR

       Jonas M. Larsen, Carlo Izzo <usd-help@eso.org>

BUG REPORTS

       Please  report  any  problems  to  usd-help@eso.org. Alternatively, you may send a report to the ESO User
       Support Department <usd-help@eso.org>.

LICENSE

       This file is currently part of the FORS Instrument Pipeline Copyright  (C)  2002-2011  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