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hawki_cal_distortion - (OBSOLETE) Distortion autocalibration


esorex hawki_cal_distortion [OPTIONS] FILE.sof


(OBSOLETE) 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


detection level (float; default: 6.0). The full name of this option for the EsoRex configuration file is hawki.hawki_cal_distortion.sigma_det [default = 6.0].
number of points in distortion grid (int; default: 9). The full name of this option for the EsoRex configuration file is hawki.hawki_cal_distortion.grid_points [default = 9].
number of pixels to trim at the borders (int; default: 6). The full name of this option for the EsoRex configuration file is hawki.hawki_cal_distortion.borders [default = 6].
Subtract a linear term to the solution (bool; default: True). The full name of this option for the EsoRex configuration file is hawki.hawki_cal_distortion.subtract_linear [default = True].

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

An overview over the existing ESO pipelines can be found on the web page

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 for further information.

The other recipes of the hawki pipeline are hawki_cal_dark(7), hawki_cal_flat(7), hawki_cal_zpoint(7), hawki_dark_combine(7), hawki_detector_noise(7), hawki_linearity_analyse(7), hawki_sci_jitter(7), hawki_science_postprocess(7), hawki_science_process(7), hawki_standard_process(7), hawki_step_apply_dist(7), hawki_step_basic_calib(7), hawki_step_combine(7), hawki_step_compute_bkg(7), hawki_step_detect_obj(7), hawki_step_photom_2mass(7), hawki_step_refine_offsets(7), hawki_step_stats(7), hawki_step_stitch(7), hawki_step_subtract_bkg(7), hawki_tec_filtchk(7), hawki_twilight_flat_combine(7), hawki_util_gendist(7), hawki_util_stdstars(7)


hawki_cal_distortion 2.4.11


ESO Pipeline Group <>


Please report any problems to 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

2.4.11 hawki_cal_distortion