Provided by: cpl-plugin-visir-doc_4.4.2+dfsg-1_all 
NAME
visir_old_spc_wcal_ech - Old DRS detector: Spectroscopic wavelength calibration recipe in
Echelle
SYNOPSIS
esorex visir_old_spc_wcal_ech [OPTIONS] FILE.sof
DESCRIPTION
This recipe estimates the dispersion relation using the atmospheric spectrum in a grism
spectroscopy half-cycle frame.
The files listed in the Set Of Frames (sof-file) must be tagged:
VISIR-Echelle-Spectroscopy-file.fits SPEC_CAL_HRG_WCAL
VISIR-Quantum-Efficiency-Calibration-file.fits SPEC_CAL_QEFF
VISIR-Atmospheric-Emission-Lines-Calibration-file.fits SPEC_CAL_LINES
Additionally, a bad pixel map with a PRO.CATG of SPEC_BPM may be added to the Set Of
Frames with tag: BPM.
OPTIONS
--auto_bpm <bool>
Automatic detection and correction of bad pixels (bool; default: True). The full
name of this option for the EsoRex configuration file is
visir.visir_old_spc_wcal_ech.auto_bpm [default = True].
--plot <int>
The recipe can produce a number of predefined plots. Zero means that none of the
plots are produced, while increasing values (e.g. 1 or 2) increases the number of
plots produced. If the plotting fails a warning is produced, and the recipe
continues. The default behaviour of the plotting is to use gnuplot (with option
-persist). The recipe currently produces 1D-plots using gnuplot commands. The
recipe user can control the actual plotting-command used by the recipe to create
the plot by setting the environment variable CPL_PLOTTER. Currently, if CPL_PLOTTER
is set it must contain the string ´gnuplot´. Setting it to ´cat >
my_gnuplot_$$.txt´ causes a number of ASCII-files to be created, which each produce
a plot when given as standard input to gnuplot (e.g. later or on a different
computer). A finer control of the plotting options can be obtained by writing an
executable script, e.g. my_gnuplot.pl, that executes gnuplot after setting the
desired gnuplot options (e.g. set terminal pslatex color) and then setting
CPL_PLOTTER to my_gnuplot.pl. The predefined plots include plotting of images.
Images can be plotted not only with gnuplot, but also using the pnm format. This is
controlled with the environment variable CPL_IMAGER. If CPL_IMAGER is set to a
string that does not contain the word gnuplot, the recipe will generate the plot in
pnm format. E.g. setting CPL_IMAGER to ´display - &´ will produce a gray-scale
image using the image viewer display. (int; default: 0). The full name of this
option for the EsoRex configuration file is visir.visir_old_spc_wcal_ech.plot
[default = 0].
--slit_skew <float>
Distortion correction: Skew of slit (degrees) (clockwise) (float; default: 0.0).
The full name of this option for the EsoRex configuration file is
visir.visir_old_spc_wcal_ech.phi [default = 0.0].
--spectrum_skew <float>
Distortion correction: LMR Skew of spectrum (degrees) (counter- clockwise). Not
used in High Resolution (float; default: 0.0). The full name of this option for the
EsoRex configuration file is visir.visir_old_spc_wcal_ech.ksi [default = 0.0].
--vert_arc <float>
Distortion correction: LR Detector vertical curvature (pixel). Reduced by a factor
4 in MR. Not used in HR A-side. Increased by a factor 115/52 in HR B-side (float;
default: 0.0). The full name of this option for the EsoRex configuration file is
visir.visir_old_spc_wcal_ech.eps [default = 0.0].
--hori_arc <float>
Distortion correction: LMR Detector horizontal curvature (pixel). Increased by a
factor 1.5 in HR A-side. Reduced by a factor 2 in HR B-side (float; default: 0.0).
The full name of this option for the EsoRex configuration file is
visir.visir_old_spc_wcal_ech.delta [default = 0.0].
--orderoffset <int>
Echelle order offset. The offset is relative to the main order. The allowed range
of offsets depend on the selected grism. The offset can never exceed +/-4. If the
main order is e.g. 8 an order offset of +1 will cause the recipe to base the data
reduction on order 9. With a positive order offset the central wavelength becomes
smaller while for a negative order offset the central wavelength becomes larger.
(int; default: 0). The full name of this option for the EsoRex configuration file
is visir.visir_old_spc_wcal_ech.orderoffset [default = 0].
--rl <int>
Reject leftmost columns in spectrum extraction, zero means all columns on the left
are used. In cross-dispersion mode a (small) negative number may be used (pixel)
(int; default: 0). The full name of this option for the EsoRex configuration file
is visir.visir_old_spc_wcal_ech.reject_left [default = 0].
--rr <int>
Reject rightmost columns in spectrum extraction, zero means all columns on the
right are used. In cross-dispersion mode a (small) negative number may be used
(pixel) (int; default: 0). The full name of this option for the EsoRex
configuration file is visir.visir_old_spc_wcal_ech.reject_right [default = 0].
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 visir pipeline can be downloaded as a PDF file using the
following URL:
ftp://ftp.eso.org/pub/dfs/pipelines/visir/visir-pipeline-manual-1.4.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 visir pipeline are visir_img_dark(7), visir_img_ff(7),
visir_img_reduce(7), visir_img_trans(7), visir_old_img_combine(7), visir_old_img_phot(7),
visir_old_spc_obs(7), visir_old_spc_obs_ech(7), visir_old_spc_phot(7),
visir_old_spc_phot_ech(7), visir_old_spc_wcal(7), visir_old_util_destripe(7),
visir_spc_reduce(7), visir_util_apply_calib(7), visir_util_clip(7),
visir_util_convert_weight(7), visir_util_detect_shift(7), visir_util_img_std_cat(7),
visir_util_join(7), visir_util_qc(7), visir_util_repack(7), visir_util_run_swarp(7),
visir_util_spc_std_cat(7), visir_util_spc_txt2fits(7), visir_util_undistort(7)
VERSION
visir_old_spc_wcal_ech 4.4.2
AUTHOR
Lars Lundin <https://support.eso.org>
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>.
LICENSE
This file is part of the VISIR Instrument Pipeline Copyright (C) 2004, 2005 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 02111-1307 USA