Distortion autocalibration
hawki_cal_distortion – HAWK-I distortion and astrometry autocalibration.
The input files must be tagged: distortion_field.fits DISTOR_OBS sky_distortion.fits DISTOR_SKY flat-file.fits FLAT_IM (optional) dark-file.fits DARK_IM (optional) bpm-file.fits BPM (optional)
The recipe creates as an output: hawki_cal_distortion_distx.fits (DISTORTION_X) hawki_cal_distortion_disty.fits (DISTORTION_Y)
The recipe performs the following steps: -Basic calibration of astrometry fields -Autocalibration of distortion, using method in A&A 454,1029 (2006)
Return code: esorex exits with an error code of 0 if the recipe completes successfully or 1 otherwise
Create an object for the recipe hawki_cal_distortion.
import cpl
hawki_cal_distortion = cpl.Recipe("hawki_cal_distortion")
detection level (float; default: 6.0) [default=6.0].
number of points in distortion grid (long; default: 9) [default=9].
number of pixels to trim at the borders (long; default: 6) [default=6].
Subtract a linear term to the solution (bool; default: True) [default=True].
The following code snippet shows the default settings for the available parameters.
import cpl
hawki_cal_distortion = cpl.Recipe("hawki_cal_distortion")
hawki_cal_distortion.param.sigma_det = 6.0
hawki_cal_distortion.param.grid_points = 9
hawki_cal_distortion.param.borders = 6
hawki_cal_distortion.param.subtract_linear = True
You may also set or overwrite some or all parameters by the recipe parameter param, as shown in the following example:
import cpl
hawki_cal_distortion = cpl.Recipe("hawki_cal_distortion")
[...]
res = hawki_cal_distortion( ..., param = {"sigma_det":6.0, "grid_points":9})
See also
cpl.Recipe for more information about the recipe object.
Please report any problems to Cesar Enrique Garcia Dabo. Alternatively, you may send a report to the ESO User Support Department.
This file is part of the HAWKI Instrument Pipeline Copyright (C) 2002,2011 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Code author: Cesar Enrique Garcia Dabo <usd-help@eso.org>