Provided by: cpl-plugin-fors-doc_4.11.12+dfsg-3_all 
NAME
fors_pmos_calib - Determination of the extraction mask
SYNOPSIS
esorex fors_pmos_calib [OPTIONS] FILE.sof
DESCRIPTION
This recipe is used to identify reference lines on PMOS arc lamp exposures, and trace the
spectral edges on the corresponding flat field exposures. This information is used to
determine the spectral extraction mask to be applied in the scientific data reduction,
performed with the recipe fors_science.
This recipe accepts both FORS1 and FORS2 frames. The input arc lamps and flat field
exposures are assumed to be obtained quasi-simultaneously, so that they would be described
by exactly the same instrument distortions.
A line catalog must be specified, containing the wavelengths of the reference arc lamp
lines used for the wavelength calibration. A grism table (typically depending on the
instrument mode, and in particular on the grism used) may also be specified: this table
contains a default recipe parameter setting to control the way spectra are extracted for a
specific instrument mode, as it is used for automatic run of the pipeline on Paranal and
in Garching. If this table is specified, it will modify the default recipe parameter
setting, with the exception of those parameters which have been explicitly modifyed on the
command line.
If a grism table is not specified, the input recipe parameters values will always be read
from the command line, or from an esorex configuration file if present, or from their
generic default values (that are rarely meaningful). Finally a master bias frame must be
input to this recipe.
The products SPECTRA_DETECTION_PMOS, SLIT_MAP_PMOS, and DISP_RESIDUALS_PMOS, are just
created if the --check parameter is set to true.
The MASTER_DISTORTION_TABLE is marked as required, but it is not so if all slits have
different offsets, and in the case of FORS1 observations made with the old TK2048EB4-1
1604 chip read in windowed mode (2048x400)
Input files:
DO category: Type: Explanation: Required:
SCREEN_FLAT_PMOS Raw Flat field exposures Y
LAMP_PMOS Raw Arc lamp exposure Y
MASTER_BIAS or BIAS Calib Bias frame Y
MASTER_LINECAT Calib Line catalog Y
GRISM_TABLE Calib Grism table .
MASTER_DISTORTION_TABLE Calib Master distortions table Y
Output files:
DO category: Data type: Explanation:
MASTER_SCREEN_FLAT_PMOS FITS image Combined (sum) flat field
MASTER_NORM_FLAT_PMOS FITS image Normalised flat field
MAPPED_SCREEN_FLAT_PMOS FITS image Wavelength calibrated flat field
MAPPED_NORM_FLAT_PMOS FITS image Wavelength calibrated normalised flat
REDUCED_LAMP_PMOS FITS image Wavelength calibrated arc spectrum
DISP_COEFF_PMOS FITS table Inverse dispersion coefficients
DISP_RESIDUALS_PMOS FITS image Residuals in wavelength calibration
DISP_RESIDUALS_TABLE_PMOS FITS table Residuals in wavelength calibration
DELTA_IMAGE_PMOS FITS image Offset vs linear wavelength calib
WAVELENGTH_MAP_PMOS FITS image Wavelength for each pixel on CCD
SPECTRA_DETECTION_PMOS FITS image Check for preliminary detection
SLIT_MAP_PMOS FITS image Map of central wavelength on CCD
CURV_TRACES_PMOS FITS table Spectral curvature traces
CURV_COEFF_PMOS FITS table Spectral curvature coefficients
SPATIAL_MAP_PMOS FITS image Spatial position along slit on CCD
SPECTRAL_RESOLUTION_PMOS FITS table Resolution at reference arc lines
SLIT_LOCATION_PMOS FITS table Slits on product frames and CCD
OPTIONS
--dispersion <float>
Expected spectral dispersion (Angstrom/pixel) (float; default: 0.0). The full name
of this option for the EsoRex configuration file is fors.fors_pmos_calib.dispersion
[default = 0.0].
--peakdetection <float>
Initial peak detection threshold (ADU) (float; default: 0.0). The full name of this
option for the EsoRex configuration file is fors.fors_pmos_calib.peakdetection
[default = 0.0].
--wdegree <long>
Degree of wavelength calibration polynomial (long; default: 0). The full name of
this option for the EsoRex configuration file is fors.fors_pmos_calib.wdegree
[default = 0].
--wradius <long>
Search radius if iterating pattern-matching with first-guess method (long; default:
4). The full name of this option for the EsoRex configuration file is
fors.fors_pmos_calib.wradius [default = 4].
--wreject <float>
Rejection threshold in dispersion relation fit (pixel) (float; default: 0.7). The
full name of this option for the EsoRex configuration file is
fors.fors_pmos_calib.wreject [default = 0.7].
--wcolumn <str>
Name of line catalog table column with wavelengths (str; default: ´WLEN´). The full
name of this option for the EsoRex configuration file is
fors.fors_pmos_calib.wcolumn [default = WLEN].
--cdegree <long>
Degree of spectral curvature polynomial (long; default: 0). The full name of this
option for the EsoRex configuration file is fors.fors_pmos_calib.cdegree [default =
0].
--cmode <long>
Interpolation mode of curvature solution (0 = no interpolation, 1 = fill gaps, 2 =
global model) (long; default: 1). The full name of this option for the EsoRex
configuration file is fors.fors_pmos_calib.cmode [default = 1].
--startwavelength <float>
Start wavelength in spectral extraction (float; default: 0.0). The full name of
this option for the EsoRex configuration file is
fors.fors_pmos_calib.startwavelength [default = 0.0].
--endwavelength <float>
End wavelength in spectral extraction (float; default: 0.0). The full name of this
option for the EsoRex configuration file is fors.fors_pmos_calib.endwavelength
[default = 0.0].
--stack_method <str>
Frames combination method (str; default: ´average´). The full name of this option
for the EsoRex configuration file is fors.fors_pmos_calib.stack_method [default =
average].
--minrejection <long>
Number of lowest values to be rejected (long; default: 1). The full name of this
option for the EsoRex configuration file is fors.fors_pmos_calib.minrejection
[default = 1].
--maxrejection <long>
Number of highest values to be rejected (long; default: 1). The full name of this
option for the EsoRex configuration file is fors.fors_pmos_calib.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_pmos_calib.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_pmos_calib.khigh [default = 3.0].
--kiter <long>
Max number of iterations in ksigma method (long; default: 999). The full name of
this option for the EsoRex configuration file is fors.fors_pmos_calib.kiter
[default = 999].
--ddegree <long>
Degree of flat field fitting polynomial along dispersion direction (long; default:
-1). The full name of this option for the EsoRex configuration file is
fors.fors_pmos_calib.ddegree [default = -1].
--dradius <long>
Smooth box radius for flat field along dispersion direction (long; default: 10).
The full name of this option for the EsoRex configuration file is
fors.fors_pmos_calib.dradius [default = 10].
--qc <bool>
Compute QC1 parameters (bool; default: True). The full name of this option for the
EsoRex configuration file is fors.fors_pmos_calib.qc [default = True].
--check <bool>
Create intermediate products (bool; default: False). The full name of this option
for the EsoRex configuration file is fors.fors_pmos_calib.check [default = False].
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-4.7.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_zeropoint(7),
fors_extract_slits(7), fors_extract(7), fors_remove_bias(7), fors_subtract_sky(7),
fors_normalise_flat(7), fors_photometry(7), fors_img_screen_flat(7), fors_dark(7),
fors_subtract_sky_lss(7), fors_trace_flat(7), fors_flatfield(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_spec_mflat(7), fors_science(7)
VERSION
fors_pmos_calib 4.11.12
AUTHOR
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) 2002-2010
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