.TH FORS_BIAS "7" "5.5.7" "fors_bias" "fors recipes"
.SH NAME
fors_bias \- Compute the master bias frame

.SH SYNOPSIS
esorex
.B fors_bias
[OPTIONS] FILE.sof

.SH 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.
.PP

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



.SH OPTIONS
.TP
\fB\-\-stack_method\fR \fI<str>\fR
Frames combination method (str; default: \'minmax\'). The full name of this option for the EsoRex configuration
file is \fBfors.fors_bias.stack_method\fR [default = \fIminmax\fR].
.TP
\fB\-\-minrejection\fR \fI<int>\fR
Number of lowest values to be rejected (int; default: 1). The full name of this option for the EsoRex configuration
file is \fBfors.fors_bias.minrejection\fR [default = \fI1\fR].
.TP
\fB\-\-maxrejection\fR \fI<int>\fR
Number of highest values to be rejected (int; default: 1). The full name of this option for the EsoRex configuration
file is \fBfors.fors_bias.maxrejection\fR [default = \fI1\fR].
.TP
\fB\-\-klow\fR \fI<float>\fR
Low threshold in ksigma method (float; default: 3.0). The full name of this option for the EsoRex configuration
file is \fBfors.fors_bias.klow\fR [default = \fI3.0\fR].
.TP
\fB\-\-khigh\fR \fI<float>\fR
High threshold in ksigma method (float; default: 3.0). The full name of this option for the EsoRex configuration
file is \fBfors.fors_bias.khigh\fR [default = \fI3.0\fR].
.TP
\fB\-\-kiter\fR \fI<int>\fR
Max number of iterations in ksigma method (int; default: 999). The full name of this option for the EsoRex configuration
file is \fBfors.fors_bias.kiter\fR [default = \fI999\fR].

.PP
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.

.SH SEE ALSO
The full documentation for the fors pipeline can be downloaded as 
a PDF file using the following URL:
.IP
.B ftp://ftp.eso.org/pub/dfs/pipelines/fors/fors\-pipeline\-manual\-4.9.pdf
.PP
An overview over the existing ESO pipelines can be found on the web page
\fBhttps://www.eso.org/sci/software/pipelines/\fR.
.PP
Basic documentation about the EsoRex program can be found at the esorex (1) 
man page.
.PP
It is possible to call the pipelines from python using the python\-cpl package.
See \fBhttps://packages.python.org/python\-cpl/index.html\fR for further
information.
.PP
The other recipes of the fors pipeline are
.IR fors_align_sky (7),
.IR fors_align_sky_lss (7),
.IR fors_calib (7),
.IR fors_config (7),
.IR fors_dark (7),
.IR fors_detect_objects (7),
.IR fors_detect_spectra (7),
.IR fors_extract (7),
.IR fors_extract_objects (7),
.IR fors_extract_slits (7),
.IR fors_flatfield (7),
.IR fors_img_science (7),
.IR fors_img_screen_flat (7),
.IR fors_img_sky_flat (7),
.IR fors_normalise_flat (7),
.IR fors_photometry (7),
.IR fors_pmos_calib (7),
.IR fors_pmos_extract (7),
.IR fors_pmos_science (7),
.IR fors_remove_bias (7),
.IR fors_resample (7),
.IR fors_science (7),
.IR fors_spec_mflat (7),
.IR fors_subtract_sky (7),
.IR fors_subtract_sky_lss (7),
.IR fors_sumflux (7),
.IR fors_trace_flat (7),
.IR fors_wave_calib (7),
.IR fors_wave_calib_lss (7),
.IR fors_zeropoint (7)

.SH VERSION
fors_bias 5.5.7

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

.SH 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>.

.SH 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