Man pages sections > man7 > giwavecalibration

giwavecalibration - Compute dispersion solution from an arc-lamp spectrum.

GIWAVECALIBRATION(7) giraf recipes GIWAVECALIBRATION(7)

NAME

giwavecalibration - Compute dispersion solution from an arc-lamp spectrum.
 

SYNOPSIS

esorex giwavecalibration [OPTIONS] FILE.sof
 

DESCRIPTION

For detailed information please refer to the GIRAFFE pipeline user manual.
It is available at http://www.eso.org/pipelines.
 

OPTIONS

--remove-bias <bool>
Enable bias removal (bool; default: True). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.remove [default = True].
--bsremove-method <str>
Bias removal method (str; default: ´PROFILE´). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.method [default = PROFILE].
--bsremove-areas <str>
Bias areas to use (Xl0:Xr0:Yl0:Yr0, ... ,Xln:Xrn:Yln:Yrn) (str; default: ´5:40:0:4095´). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.areas [default = 5:40:0:4095].
--bsremove-sigma <float>
Sigma Clipping: sigma threshold factor (float; default: 2.5). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.sigma [default = 2.5].
--bsremove-niter <long>
Sigma Clipping: maximum number of iterations (long; default: 5). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.iterations [default = 5].
--bsremove-mfrac <float>
Sigma Clipping: minimum fraction of points accepted/total [0.0..1.0] (float; default: 0.8). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.fraction [default = 0.8].
--bsremove-xorder <long>
Order of X polynomial fit (CURVE method only) (long; default: 1). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.xorder [default = 1].
--bsremove-yorder <long>
Order of Y polynomial fit (CURVE method only) (long; default: 1). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.yorder [default = 1].
--bsremove-xstep <long>
Sampling step along X (CURVE method only) (long; default: 1). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.xstep [default = 1].
--bsremove-ystep <long>
Sampling step along Y (CURVE method only) (long; default: 1). The full name of this option for the EsoRex configuration file is giraffe.biasremoval.ystep [default = 1].
--extr-method <str>
Extraction method: ´SUM´, ´HORNE´ or ´OPTIMAL´ (str; default: ´SUM´). The full name of this option for the EsoRex configuration file is giraffe.extraction.method [default = SUM].
--extr-ron <float>
New bias sigma (RON) value for bias and dark corrected image (float; default: -1.0). The full name of this option for the EsoRex configuration file is giraffe.extraction.ron [default = -1.0].
--extr-psfmodel <str>
PSF profile model: `psfexp´, `psfexp2´ (str; default: ´psfexp2´). The full name of this option for the EsoRex configuration file is giraffe.extraction.psf.model [default = psfexp2].
--extr-psfsigma <float>
Sigma clippging threshold used for rejecting data points during PSF fitting (Horne´s sigma). It is used to reject bad pixels and cosmics. (float; default: 7.0). The full name of this option for the EsoRex configuration file is giraffe.extraction.psf.sigma [default = 7.0].
--extr-psfniter <long>
Maximum number of iterations used for fitting the PSF profile. (long; default: 2). The full name of this option for the EsoRex configuration file is giraffe.extraction.psf.iterations [default = 2].
--extr-hewidth <long>
Horne extraction method: Number of extra pixels added to the fiber half-width. (long; default: 2). The full name of this option for the EsoRex configuration file is giraffe.extraction.horne.extrawidth [default = 2].
--extr-hmingood <long>
Horne extraction method: Minimum number of points used for the profile fit. It sets the lower limit of data points for the pixel rejection. (long; default: 3). The full name of this option for the EsoRex configuration file is giraffe.extraction.horne.mingood [default = 3].
--extr-omfrac <float>
Optimal extraction method: Minimum fraction of the data points used for fitting the fiber profiles. It sets the lower limit for the pixel rejection. (float; default: 0.9). The full name of this option for the EsoRex configuration file is giraffe.extraction.optimal.fraction [default = 0.9].
--extr-owfactor <float>
Optimal extraction method: Factor by which the fiber PSF half width is multiplied. Adjacent spectra within this area are assumed to affect the spectrum being extracted. (float; default: 3.0). The full name of this option for the EsoRex configuration file is giraffe.extraction.optimal.wfactor [default = 3.0].
--extr-obkgorder <long>
Optimal extraction method: Order of the polynomial background model, which is fitted for each wavelength bin along the spatial direction. (long; default: 2). The full name of this option for the EsoRex configuration file is giraffe.extraction.optimal.bkgorder [default = 2].
--wcal-lswidth <str>
List of window widths [pxl] used for line detection and fit (e.g. ´60,40,15´). (str; default: ´10,10,10,10,10´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.widths [default = 10,10,10,10,10].
--wcal-lssep <float>
Factor used to compute the minimum line separation from the window width. (float; default: 0.9). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.separation [default = 0.9].
--wcal-lsfxratio <float>
Selects only lines whose neighbours have a relative intensity less than 1. / fluxratio. (float; default: 50.0). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.fluxratio [default = 50.0].
--wcal-lsbright <float>
Selects lines having an intensity greater or equal to the given intensity. (float; default: 0.0). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.brightness [default = 0.0].
--wcal-lscount <long>
Sets the minimum number of lines to select; selected are lines with the highest nominal intensity. A value of 0 turns this selection off. If the value is less than 0 the selection is skipped if the line list does not contain enough lines. (long; default: -80). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.count [default = -80].
--wcal-lswrange <str>
Selects only lines within the given wavelength range [nm]. (str; default: ´0.,0.´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.wrange [default = 0.,0.].
--wcal-lfmodel <str>
Line profile model. (str; default: ´psfexp´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.model [default = psfexp].
--wcal-lfres <str>
Use optical model residuals for line detection. (str; default: ´auto´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.residuals [default = auto].
--wcal-lfthreshold <float>
Line detection threshold during the line fitting (multiple of bias sigma) (float; default: 1.0). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.threshold [default = 1.0].
--wcal-lfoffset <float>
Maximum allowed difference between the fitted and raw line peak position. (float; default: 10.0). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.offset [default = 10.0].
--wcal-lfniter <long>
Line detection fit maximum number of iterations. (long; default: 50). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.iterations [default = 50].
--wcal-lfntest <long>
Line detection fit maximum number of tests. (long; default: 7). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.tests [default = 7].
--wcal-lfdchisq <float>
Line detection fit minimum chi-square difference. (float; default: 0.0001). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.dchisquare [default = 0.0001].
--wcal-lfreswid <float>
Line width/resolution width factor. (float; default: 0.5). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.rwidthratio [default = 0.5].
--wcal-lfexpwid <float>
Exponential line profile exponent; it will not be fitted if it is larger than 0. (float; default: -3.0). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.line.exponent [default = -3.0].
--wcal-soffset <str>
Initial slit position offsets along the x and y direction and rotation angle. (str; default: ´setup´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.slit.offset [default = setup].
--wcal-ommodel <str>
Optical model. (str; default: ´xoptmod2´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.model [default = xoptmod2].
--wcal-omdir <long>
Dispersion direction flag. (long; default: 1). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.direction [default = 1].
--wcal-omsol <bool>
Controls optical model parameter fitting. (bool; default: True). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.solution [default = True].
--wcal-omflags <str>
List of flags defining the set of free parameters used for fitting the optical model. Possible values are: fcoll, gcam, theta, sdx, sdy, sphi (str; default: ´sdx,sdy,sphi´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.flags [default = sdx,sdy,sphi].
--wcal-omsslits <bool>
Controls subslit geometry usage in the optical model fit; subslits are used if set to `true´. (bool; default: False). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.subslits [default = False].
--wcal-omniter <long>
Optical model fit maximum number of iterations. (long; default: 50). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.iterations [default = 50].
--wcal-omntest <long>
Optical model fit maximum number of tests (long; default: 7). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.tests [default = 7].
--wcal-omdchisq <float>
Optical model fit minimum chi-square difference. (float; default: 0.0001). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.opt.dchisquare [default = 0.0001].
--wcal-xwsigma <float>
PSF width fit sigma clipping factor. (float; default: 1.25). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.psf.sigma [default = 1.25].
--wcal-xwniter <long>
PSF width fit sigma clipping maximum number of iterations. (long; default: 10). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.psf.iterations [default = 10].
--wcal-xwmfrac <float>
PSF width fit sigma clipping minimum fraction of points accepted/total. (float; default: 0.9). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.psf.fraction [default = 0.9].
--wcal-xworder <str>
X and Y polynomial orders for PSF x-width Chebyshev fit. (str; default: ´2,2´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.psf.order [default = 2,2].
--wcal-wssigma <float>
Chebyshev correction sigma clipping factor. (float; default: 150.0). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.wsol.sigma [default = 150.0].
--wcal-wsniter <long>
Chebyshev correction sigma clipping maximum number of iterations (long; default: 10). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.wsol.iterations [default = 10].
--wcal-wsmfrac <float>
Chebyshev correction sigma clipping minimum fraction of points accepted/total. (float; default: 0.9). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.wsol.fraction [default = 0.9].
--wcal-wsorder <str>
X and Y polynomial orders for the wavelength solution Chebyshev correction. (str; default: ´6,4´). The full name of this option for the EsoRex configuration file is giraffe.wlcalibration.wsol.order [default = 6,4].
--wcal-rebin <bool>
Rebin extracted arc-lamp spectra. (bool; default: True). The full name of this option for the EsoRex configuration file is giraffe.wcal.rebin [default = True].
--rbin-method <str>
Method to use : `linear´ or `spline´ (str; default: ´linear´). The full name of this option for the EsoRex configuration file is giraffe.rebinning.method [default = linear].
--rbin-xresid <bool>
Use x residuals during rebinning? `true´/`false´ (bool; default: True). The full name of this option for the EsoRex configuration file is giraffe.rebinning.xresiduals [default = True].
--rbin-lstep <float>
Lambda step size, only used if scaling method is ´linear´ (float; default: 0.005). The full name of this option for the EsoRex configuration file is giraffe.rebinning.lstep [default = 0.005].
--rbin-scmethod <str>
Scaling method: `log´ or `linear´ (str; default: ´linear´). The full name of this option for the EsoRex configuration file is giraffe.rebinning.scalemethod [default = linear].
--rbin-size <long>
Size of output rebinned spectra, 0 means calculate size based on wavelength range and lambda stepsize (long; default: 0). The full name of this option for the EsoRex configuration file is giraffe.rebinning.size [default = 0].
--rbin-range <str>
Rebinning range: `setup´ or `common´ (str; default: ´setup´). The full name of this option for the EsoRex configuration file is giraffe.rebinning.range [default = setup].
--wcal-slit <bool>
Controls the slit geometry calibration. (bool; default: False). The full name of this option for the EsoRex configuration file is giraffe.wcal.slitgeometry [default = False].
--scal-cniter <long>
Slit geometry calibration maximum number of iterations. (long; default: 1). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.iterations [default = 1].
--scal-zmax <float>
Maximum allowed pixel value. To be effective it must be larger than 0. (float; default: 10000.0). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.zmax [default = 10000.0].
--scal-cstep <float>
Cross-correlation step. (float; default: -0.005). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.cc.step [default = -0.005].
--scal-cdomain <str>
Restricts the cross-correlation to the given domain. (str; default: ´0.,0.´). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.cc.domain [default = 0.,0.].
--scal-rvlimits <str>
Delta RV limits of the cross-correlation window in km/s. (str; default: ´-200.,200.´). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.rv.limits [default = -200.,200.].
--scal-rvniter <long>
Maximum number of iterations used for the RV determination. (long; default: 3). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.rv.iterations [default = 3].
--scal-rvwfactor <float>
Data window width factor. The FWHM times this value determines the window width. (float; default: 1.5). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.rv.wfactor [default = 1.5].
--scal-pfniter <long>
Peak model fit maximum number of iterations. (long; default: 50). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.peak.iterations [default = 50].
--scal-pfntest <long>
Cross-correlation peak fit maximum number of tests (long; default: 7). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.peak.tests [default = 7].
--scal-pfdchisq <float>
Cross-correlation peak fit minimum chi-square difference. (float; default: 0.0001). The full name of this option for the EsoRex configuration file is giraffe.sgcalibration.peak.dchisquare [default = 0.0001].
 
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 giraf pipeline can be downloaded as a PDF file using the following URL:
ftp://ftp.eso.org/pub/dfs/pipelines/giraffe/giraf-pipeline-manual-2.11.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 giraf pipeline are giframestack(7), gimasterbias(7), gimasterdark(7), gimasterflat(7), giscience(7), gistandard(7)
 

VERSION

giwavecalibration 2.16.2
 

AUTHOR

Giraffe Pipeline <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 part of the GIRAFFE Instrument Pipeline
Copyright (C) 2002-2014 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
2.16.2 giwavecalibration