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muse_exp_combine - Combine several exposures into one datacube.

MUSE_EXP_COMBINE(7) muse recipes MUSE_EXP_COMBINE(7)

NAME

muse_exp_combine - Combine several exposures into one datacube.
 

SYNOPSIS

esorex muse_exp_combine [OPTIONS] FILE.sof
 

DESCRIPTION

Sort reduced pixel tables, one per exposure, by exposure and combine them with applied weights into one final datacube.
 

OPTIONS

--save <str>
Select output product(s) to save. Can contain one or more of "cube" (output cube and associated images; if this is not given, no resampling is done at all) or "combined" (fully reduced and combined pixel table for the full set of exposures; this is useful, if the final resampling step is to be done again separately). If several options are given, they have to be comma-separated. (str; default: ´cube´). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.save [default = cube].
--resample <str>
The resampling technique to use for the final output cube. (str; default: ´drizzle´). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.resample [default = drizzle].
--dx <float>
Horizontal step size for resampling (in arcsec or pixel). The following defaults are taken when this value is set to 0.0: 0.2´´ for WFM, 0.075´´ for NFM, 1.0 if data is in pixel units. (float; default: 0.0). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.dx [default = 0.0].
--dy <float>
Vertical step size for resampling (in arcsec or pixel). The following defaults are taken when this value is set to 0.0: 0.2´´ for WFM, 0.075´´ for NFM, 1.0 if data is in pixel units. (float; default: 0.0). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.dy [default = 0.0].
--dlambda <float>
Wavelength step size (in Angstrom). Natural instrument sampling is used, if this is 0.0 (float; default: 0.0). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.dlambda [default = 0.0].
--crtype <str>
Type of statistics used for detection of cosmic rays during final resampling. "iraf" uses the variance information, "mean" uses standard (mean/stdev) statistics, "median" uses median and the median median of the absolute median deviation. (str; default: ´median´). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.crtype [default = median].
--crsigma <float>
Sigma rejection factor to use for cosmic ray rejection during final resampling. A zero or negative value switches cosmic ray rejection off. (float; default: 10.0). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.crsigma [default = 10.0].
--rc <float>
Critical radius for the "renka" resampling method. (float; default: 1.25). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.rc [default = 1.25].
--pixfrac <float>
Pixel down-scaling factor for the "drizzle" resampling method. (float; default: 0.6). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.pixfrac [default = 0.6].
--ld <long>
Number of adjacent pixels to take into account during resampling in all three directions (loop distance); this affects all resampling methods except "nearest". (long; default: 1). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.ld [default = 1].
--format <str>
Type of output file format, "Cube" is a standard FITS cube with NAXIS=3 and multiple extensions (for data and variance). The extended "x" formats include the reconstructed image(s) in FITS image extensions within the same file. "sdpCube" does some extra calculations to create FITS keywords for the ESO Science Data Products. (str; default: ´Cube´). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.format [default = Cube].
--weight <str>
Type of weighting scheme to use when combining multiple exposures. "exptime" just uses the exposure time to weight the exposures, "fwhm" uses the best available seeing information from the headers as well, "none" preserves an existing weight column in the input pixel tables without changes. (str; default: ´exptime´). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.weight [default = exptime].
--filter <str>
The filter name(s) to be used for the output field-of-view image. Each name has to correspond to an EXTNAME in an extension of the FILTER_LIST file. If an unsupported filter name is given, creation of the respective image is omitted. If multiple filter names are given, they have to be comma separated. (str; default: ´white´). The full name of this option for the EsoRex configuration file is muse.muse_exp_combine.filter [default = white].
--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_exp_combine.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_exp_combine.lambdamax [default = 10000.0].
 
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-2.0.3.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 muse pipeline are muse_ampl(7), muse_astrometry(7), muse_bias(7), muse_create_sky(7), muse_dark(7), muse_exp_align(7), muse_flat(7), muse_geometry(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_subtract_sky(7), muse_scipost_subtract_sky_simple(7), muse_standard(7), muse_twilight(7), muse_wavecal(7)
 

VERSION

muse_exp_combine 2.0.3
 

AUTHOR

Peter Weilbacher <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, 2017 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
2.0.3 muse_exp_combine