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

uves_cal_cd_align                                     6.1.8                                 UVES_CAL_CD_ALIGN(7)