NAME

       uves_cal_cd_align - Measures the reproducability of the cross disperser positioning

SYNOPSIS

       esorex uves_cal_cd_align [OPTIONS] FILE.sof

DESCRIPTION

       Given two input frames (CD_ALIGN_xxx where xxx = BLUE or RED) which contain only one
       echelle order, this recipe measures the shift in the cross-dispersion direction of that
       order. For RED input frames, only the lower chip is processed.

       The recipe produces a CD_ALIGN_TABLE_xxxx (with xxxx = BLUE or REDL) with columns X:
       Column number YCENi:     Centroid from Gaussian fit (for i = 1,2) SIGMAi:    Stdev from
       Gaussian fit BACKi:     Constant background from Gaussian fit NORMi:     Normalization
       constant from Gaussian fit YDIFF:     Difference YCEN2 - YCEN1 of centroid positions

       and the QC-parameters ESO.QC.YDIFF(AVG|MED|RMS), which are the average, median and
       root-mean-square of the y-shift, respectively.

OPTIONS

       --debug <bool>
              Whether or not to save intermediate results to local directory (bool; default:
              False). The full name of this option for the EsoRex configuration file is
              uves.debug [default = False].

       --plotter <str>
              Any plots produced by the recipe are redirected to the command specified by this
              parameter. The plotting command must contain the substring ´gnuplot´ and must be
              able to parse gnuplot syntax on its standard input. Valid examples of such a
              command may include ´gnuplot -persist´ and ´cat > mygnuplot$$.gp´. 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). To turn off plotting, set this parameter to ´no´
              (str; default: ´no´). The full name of this option for the EsoRex configuration
              file is uves.plotter [default = no].

       --process_chip <str>
              For RED arm data process the redl, redu, or both chip(s) (str; default: ´both´).
              The full name of this option for the EsoRex configuration file is uves.process_chip
              [default = both].

       --steps <int>
              Step size in pixels (int; default: 100). The full name of this option for the
              EsoRex configuration file is uves_cal_cd_align.steps [default = 100].

       --window <int>
              The half window height used for Gaussian fitting (int; default: 50). The full name
              of this option for the EsoRex configuration file is uves_cal_cd_align.window
              [default = 50].

       --xborder <int>
              Exclude a border region of this size (pixels) (int; default: 200). The full name of
              this option for the EsoRex configuration file is uves_cal_cd_align.xborder [default
              = 200].

       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 uves pipeline can be downloaded as a PDF file using the
       following URL:

              ftp://ftp.eso.org/pub/dfs/pipelines/uves/uves-pipeline-manual-6.1.8.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 uves pipeline are flames_cal_mkmaster(7), flames_cal_orderpos(7),
       flames_cal_predict(7), flames_cal_prep_sff_ofpos(7), flames_cal_wavecal(7),
       flames_obs_redchain(7), flames_obs_scired(7), flames_utl_unpack(7), uves_cal_mbias(7),
       uves_cal_mdark(7), uves_cal_mflat(7), uves_cal_mflat_combine(7), uves_cal_mkmaster(7),
       uves_cal_orderpos(7), uves_cal_predict(7), uves_cal_response(7), uves_cal_tflat(7),
       uves_cal_wavecal(7), uves_obs_redchain(7), uves_obs_scired(7), uves_utl_ima_arith(7),
       uves_utl_remove_crh_single(7)

VERSION

       uves_cal_cd_align 6.1.8

AUTHOR

       Jonas M. Larsen <cpl@eso.org>

BUG REPORTS

       Please report any problems to cpl@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 FLAMES/UVES Pipeline Copyright (C) 2004, 2005, 2006, 2007
       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