jammy (7) muse_create_sky.7.gz

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NAME

       muse_create_sky - Create night sky model from selected pixels of an exposure of empty sky.

SYNOPSIS

       esorex muse_create_sky [OPTIONS] FILE.sof

DESCRIPTION

       This  recipe  creates the continuum and the atmospheric transition line spectra of the night sky from the
       data in a pixel table(s) belonging to one exposure of (mostly) empty sky.

OPTIONS

       --fraction <float>
              Fraction of the image (without the ignored part) to be considered as sky. If an input sky mask  is
              provided,  the fraction is applied to the regions within the mask. If the whole sky mask should be
              used, set this parameter to 1. (float; default: 0.75). The full name of this option for the EsoRex
              configuration file is muse.muse_create_sky.fraction [default = 0.75].

       --ignore <float>
              Fraction  of the image to be ignored. If an input sky mask is provided, the fraction is applied to
              the regions within the mask. If the whole sky mask should  be  used,  set  this  parameter  to  0.
              (float;  default:  0.05).  The  full  name  of  this  option  for the EsoRex configuration file is
              muse.muse_create_sky.ignore [default = 0.05].

       --sampling <float>
              Spectral sampling of the sky spectrum [Angstrom]. (float; default: 0.3125). The full name of  this
              option for the EsoRex configuration file is muse.muse_create_sky.sampling [default = 0.3125].

       --csampling <float>
              Spectral sampling of the continuum spectrum [Angstrom]. (float; default: 0.3125). The full name of
              this option for  the  EsoRex  configuration  file  is  muse.muse_create_sky.csampling  [default  =
              0.3125].

       --crsigma <str>
              Sigma  level  clipping for cube-based and spectrum-based CR rejection.  This has to be a string of
              two comma-separated floating-point numbers.  The first value gives the sigma-level  rejection  for
              cube-based  CR  rejection (using "median", see muse_scipost), the second value the sigma-level for
              spectrum-based CR cleaning. Both can be switched off, by passing zero or a negative  value.  (str;
              default:  ´15.,15.´).  The  full  name  of  this  option  for  the  EsoRex  configuration  file is
              muse.muse_create_sky.crsigma [default = 15.,15.].

       --lambdamin <float>
              Cut off the data below this wavelength after loading the pixel table(s). (float; default: 4000.0).
              The  full  name of this option for the EsoRex configuration file is muse.muse_create_sky.lambdamin
              [default = 4000.0].

       --lambdamax <float>
              Cut off the data above  this  wavelength  after  loading  the  pixel  table(s).  (float;  default:
              10000.0).   The   full   name   of   this   option   for   the   EsoRex   configuration   file  is
              muse.muse_create_sky.lambdamax [default = 10000.0].

       --lambdaref <float>
              Reference wavelength used for correction of differential atmospheric refraction. The R-band  (peak
              wavelength ~7000 Angstrom) that is usually used for guiding, is close to the central wavelength of
              MUSE, so a value of 7000.0 Angstrom should be used if nothing else is known.  A  value  less  than
              zero  switches  DAR correction off. (float; default: 7000.0). The full name of this option for the
              EsoRex configuration file is muse.muse_create_sky.lambdaref [default = 7000.0].

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

              ftp://ftp.eso.org/pub/dfs/pipelines/muse/muse-pipeline-cookbook-2.8.5.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 muse pipeline are muse_ampl(7), muse_astrometry(7), muse_bias(7), muse_dark(7),
       muse_exp_align(7), muse_exp_combine(7), muse_flat(7), muse_geometry(7),  muse_illum(7),  muse_lingain(7),
       muse_lsf(7),   muse_qi_mask(7),   muse_scibasic(7),   muse_scipost(7),  muse_scipost_apply_astrometry(7),
       muse_scipost_calibrate_flux(7),      muse_scipost_combine_pixtables(7),      muse_scipost_correct_dar(7),
       muse_scipost_correct_rv(7),               muse_scipost_make_cube(7),               muse_scipost_raman(7),
       muse_scipost_subtract_sky(7),  muse_scipost_subtract_sky_simple(7),  muse_standard(7),  muse_twilight(7),
       muse_wavecal(7)

VERSION

       muse_create_sky 2.8.5

AUTHOR

       Ole Streicher <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 MUSE Instrument Pipeline Copyright (C) 2005, 2019 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