Apply DAR correction for MUSE pixel tables.
Correct the coordinates in the pixel table by differential atmospheric refraction. This is a task separated from muse_scipost.
Create an object for the recipe muse_scipost_correct_dar.
import cpl
muse_scipost_correct_dar = cpl.Recipe("muse_scipost_correct_dar")
Cut off the data below this wavelength after loading the pixel table(s). (float; default: 4000.0) [default=4000.0].
Cut off the data above this wavelength after loading the pixel table(s). (float; default: 10000.0) [default=10000.0].
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) [default=7000.0].
Carry out a check of the theoretical DAR correction using source centroiding. If “correct” it will also apply an empirical correction. (str; default: ‘none’) [default=”none”].
The following code snippet shows the default settings for the available parameters.
import cpl
muse_scipost_correct_dar = cpl.Recipe("muse_scipost_correct_dar")
muse_scipost_correct_dar.param.lambdamin = 4000.0
muse_scipost_correct_dar.param.lambdamax = 10000.0
muse_scipost_correct_dar.param.lambdaref = 7000.0
muse_scipost_correct_dar.param.darcheck = "none"
You may also set or overwrite some or all parameters by the recipe parameter param, as shown in the following example:
import cpl
muse_scipost_correct_dar = cpl.Recipe("muse_scipost_correct_dar")
[...]
res = muse_scipost_correct_dar( ..., param = {"lambdamin":4000.0, "lambdamax":10000.0})
See also
cpl.Recipe for more information about the recipe object.
Please report any problems to Ole Streicher. Alternatively, you may send a report to the ESO User Support Department.
This file is part of the MUSE Instrument Pipeline Copyright (C) 2005, 2014 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
Code author: Ole Streicher <usd-help@eso.org>