NAME

       vmdet - Determine RON, gain, and bad pixels from a set of flat field exposures.

SYNOPSIS

       esorex vmdet [OPTIONS] FILE.sof

DESCRIPTION

       This  recipe  is  used to estimate the read-out-noise (RON) and the gain of the CCD, and to determine the
       positions of the bad pixels.

       The input SOF should contain at least five pairs of flat field  exposures,  all  belonging  to  the  same
       quadrant, each pair corresponding to a different exposure time. The flat fields can be produced either in
       imaging or in MOS mode. In MOS mode a HR grism is used, in order to illuminate the CCD  also  beyond  the
       central region used in direct imaging mode, but no mask is inserted at the telescope focal plane.

       This  type  of  exposure cannot really be considered a spectral flat field, because the CCD is exposed to
       white light (i.e., without a wavelength dependency along  the  dispersion  direction).  The  flat  fields
       generated  for  the  purpose  of  determining  the  detector  properties  are  assigned  the  DO category
       DETECTOR_PROPERTIES, to distinguish them from the more common IMG_SCREEN_FLAT or MOS_SCREEN_FLAT that are
       used to produce master calibrations.

       Input files:

         DO category:          Type:         Explanation:  Required:
         DETECTOR_PROPERTIES   Raw           Flat field       Y
         MASTER_BIAS           Calib         Master bias      Y

       Output files:

         DO category:          Data type:    Explanation:
         CCD_TABLE             FITS table    Bad pixel table
         (none)                FITS image    Bad pixel image
         (none)                FITS image    Error image

       Only  the  primary  product,  the  bad  pixel table, is copied (or moved) to the product directory. Other
       products are generated only on request (typically for debug purposes) and are not assigned a DO  category
       as they would not be used anywhere in further data processing steps.

       For more details, please refer to the VIMOS Pipeline User´s Guide.

OPTIONS

       --CreateBadPixelMap <bool>
              Bad  pixel  map  creation  (bool;  default:  True).  The  full  name of this option for the EsoRex
              configuration file is vimos.Parameters.map [default = True].

       --CreateErrorImage <bool>
              Response slope uncertainty map creation (bool; default: False). The full name of this  option  for
              the EsoRex configuration file is vimos.Parameters.error [default = False].

       --DetectionThreshold <float>
              Threshold  in  determination of bad pixels (float; default: 5.0). The full name of this option for
              the EsoRex configuration file is vimos.Parameters.threshold [default = 5.0].

       --DetectionMode <str>
              Bad pixel detection method (str; default: ´Intolerant´). The full name  of  this  option  for  the
              EsoRex configuration file is vimos.Parameters.method [default = Intolerant].

       --ComputeQC <bool>
              Compute  QC1  parameters.  (bool;  default:  True).  The  full  name of this option for the EsoRex
              configuration file is vimos.Parameters.quality.enable [default = True].

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

              ftp://ftp.eso.org/pub/dfs/pipelines/vimos/vimos-pipeline-manual-6.9.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 vimos pipeline are vimos_ima_bias(7), vimos_ima_dark(7), vimos_ima_det_noise(7),
       vimos_ima_fringe(7), vimos_ima_science(7), vimos_ima_standard(7), vimos_ima_twilight_flat(7),  vmbias(7),
       vmdark(7),   vmifucalib(7),   vmifucombine(7),  vmifucombinecube(7),  vmifuscience(7),  vmifustandard(7),
       vmmoscalib(7), vmmosscience(7), vmspphot(7)

VERSION

       vmdet 4.1.7

AUTHOR

       ESO VIMOS Pipeline Team <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 VIMOS Instrument Pipeline Copyright (C) 2002-2005 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  02110-1301 USA