.TH HAWKI_STEP_SUBTRACT_BKG "7" "2.4.11" "hawki_step_subtract_bkg" "hawki recipes"
.SH NAME
hawki_step_subtract_bkg \- (OBSOLETE) Background subtraction utility

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

.SH DESCRIPTION
(OBSOLETE) hawki_step_subtract_bkg \-\- hawki background subtraction utility.
.PP
This recipe will subtract the given background to the science images.
.PP
The background can be obtained from the sky or object images
using the hawki_util_compute_bkg utility.
.PP
There are two modes of operation:
One single background image that it is subtracted to all object images.
.PP
As many background images as objects. A one to one relationship is applied.
.PP
The files listed in the Set Of Frames (sof\-file) must be tagged:
obj_basic_cal\-file.fits BASIC_CALIBRATED or
background\-file.fits BKG_IM 


.SH OPTIONS

.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 hawki pipeline can be downloaded as 
a PDF file using the following URL:
.IP
.B ftp://ftp.eso.org/pub/dfs/pipelines/hawki/hawki\-pipeline\-manual\-2.4.11.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 hawki pipeline are
.IR hawki_cal_dark (7),
.IR hawki_cal_distortion (7),
.IR hawki_cal_flat (7),
.IR hawki_cal_zpoint (7),
.IR hawki_dark_combine (7),
.IR hawki_detector_noise (7),
.IR hawki_linearity_analyse (7),
.IR hawki_sci_jitter (7),
.IR hawki_science_postprocess (7),
.IR hawki_science_process (7),
.IR hawki_standard_process (7),
.IR hawki_step_apply_dist (7),
.IR hawki_step_basic_calib (7),
.IR hawki_step_combine (7),
.IR hawki_step_compute_bkg (7),
.IR hawki_step_detect_obj (7),
.IR hawki_step_photom_2mass (7),
.IR hawki_step_refine_offsets (7),
.IR hawki_step_stats (7),
.IR hawki_step_stitch (7),
.IR hawki_tec_filtchk (7),
.IR hawki_twilight_flat_combine (7),
.IR hawki_util_gendist (7),
.IR hawki_util_stdstars (7)

.SH VERSION
hawki_step_subtract_bkg 2.4.11

.SH AUTHOR
ESO Pipeline Group <https://support.eso.org>

.SH BUG REPORTS
Please report any problems to https://support.eso.org. Alternatively, you may send a report to the ESO User Support Department <usd\-help@eso.org>.

.SH LICENSE
This file is part of the HAWKI 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 Street, Fifth Floor, Boston, 
MA 02110\-1301 USA