Create master dark frame & bad pixel mask
esorex kmos_dark [OPTIONS] FILE.sof
This recipe calculates the master dark frame.
It is recommended to provide three or more dark exposures to produce a reasonable master with associated noise.
--pos_bad_pix_rej --neg_bad_pix_rej Bad pixels above and below defined positive/negative threshold levels will be flagged and output to the BADPIX_DARK frame.
The number of bad pixels is returned as a QC1 parameter.
The two parameters can be used to change these thresholds.
--cmethod Following methods of frame combination are available:
* \'ksigma\' (Default)
An iterative sigma clipping. For each position all pixels in the
spectrum are examined. If they deviate significantly, they will be
rejected according to the conditions:
val > mean + stdev * cpos_rej
and
val < mean - stdev * cneg_rej
where --cpos_rej, --cneg_rej and --citer are the wished parameters
In the first iteration median and percentile level are used.
* \'median\'
At each pixel position the median is calculated.
* \'average\'
At each pixel position the average is calculated.
* \'sum\'
At each pixel position the sum is calculated.
* \'min_max\'
The specified number of min and max pixel values will be rejected.
--cmax and --cmin apply to this method.
--file_extension Set this parameter to TRUE if the EXPTIME keyword should be appended to the output filenames.
--cpos_rej --cneg_rej --citer
see --cmethod=\'ksigma\'
--cmax --cmin
see --cmethod=\'min_max\'
Input files:
DO CATG Type Explanation Required #Frames
------- ----- ----------- -------- -------
DARK RAW Dark exposures Y 1-n
(at least 3 frames recommended)
Output files:
DO CATG Type Explanation ------- ----- ----------- MASTER_DARK F2D Calculated master dark frames BADPIXEL_DARK B2D Associated badpixel frames
--pos_bad_pix_rej <float>
The positive rejection threshold for bad pixels (float; default: 50.0). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.pos_bad_pix_rej [default = 50.0].
--neg_bad_pix_rej <float>
The negative rejection threshold for bad pixels (float; default: 50.0). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.neg_bad_pix_rej [default = 50.0].
--file_extension <bool>
Controls if EXPTIME should be appended to product filenames (bool; default: False). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.file_extension [default = False].
--cmethod <str>
Apply "average", "median", "sum", "min_max." or "ksigma". (str; default: \'ksigma\'). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.cmethod [default = ksigma].
--cpos_rej <float>
The positive rejection threshold for kappa-sigma-clipping (sigma). (float; default: 3.0). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.cpos_rej [default = 3.0].
--cneg_rej <float>
The negative rejection threshold for kappa-sigma-clipping (sigma). (float; default: 3.0). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.cneg_rej [default = 3.0].
--citer <long>
The number of iterations for kappa-sigma-clipping. (long; default: 3). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.citer [default = 3].
--cmax <long>
The number of maximum pixel values to clip with min/max-clipping. (long; default: 1). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.cmax [default = 1].
--cmin <long>
The number of minimum pixel values to clip with min/max-clipping. (long; default: 1). The full name of this option for the EsoRex configuration file is kmos.kmos_dark.cmin [default = 1].
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.
The full documentation for the kmos pipeline can be downloaded as a PDF file using the following URL:
ftp://ftp.eso.org/pub/dfs/pipelines/kmos/kmos-pipeline-manual-2.9.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 kmos pipeline are kmo_copy(7), kmo_fits_check(7), kmo_sci_red(7), kmo_fits_stack(7), kmo_noise_map(7), kmo_rotate(7), kmo_extract_spec(7), kmo_multi_reconstruct(7), kmo_sky_tweak(7), kmo_shift(7), kmos_gen_reflines(7), kmo_stats(7), kmo_arithmetic(7), kmo_fits_strip(7), kmo_combine(7), kmo_std_star(7), kmo_illumination_flat(7), kmo_make_image(7), kmos_flat(7), kmo_fit_profile(7), kmo_sky_mask(7), kmos_illumination(7), kmos_wave_cal(7), kmo_reconstruct(7)
kmos_dark 1.3.5
Alex Agudo Berbel, Yves Jung <[email protected]>
Please report any problems to [email protected]. Alternatively, you may send a report to the ESO User Support Department <[email protected]>.
This file is part of the CRIRES Instrument Pipeline Copyright (C) 2002,2003 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.
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA