---
name: "hawki_detector_noise"
section: "7"
platform: "linux"
package: "cpl-plugin-hawki-doc"
version: "2.4.11+dfsg-1"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/hawki_detector_noise"
---

# hawki\_detector\_noise(7)

HAWKI detector noise recipe

## NAME

hawki\_detector\_noise - HAWKI detector noise recipe

## SYNOPSIS

esorex **hawki\_detector\_noise** \[OPTIONS\] FILE.sof

## DESCRIPTION

hawki\_detector\_noise -- HAWKI recipe to find readnoise and gain.

Compute the readnoise and gain for the hawki detectors using two dark frames and two flat field frames. Both must have been exposed with NDIT=1 The program accepts the following files in the SOF:

    Tag                   Description

    DARK                  A list of raw dark images\
     FLAT\_TWILIGHT         A list of raw flat images\
     MASTER\_BPM            Optional master bad pixel mask or\
     MASTER\_CONF           Optional master confidence map If a master bad pixel mask or confidence map is included then thebad pixels will be flagged during the statistical analysis

## OPTIONS

- **--thresh** *\<float\>*

  Rejection threshold in sigma above background (float; default: 5.0). The full name of this option for the EsoRex configuration file is **hawki.hawki\_detector\_noise.thresh** \[default = *5.0*\].

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

-

  **ftp://ftp.eso.org/pub/dfs/pipelines/hawki/hawki-pipeline-manual-2.4.11.pdf**

An overview over the existing ESO pipelines can be found on the web page **https://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 **https://packages.python.org/python-cpl/index.html** for further information.

The other recipes of the hawki pipeline are [*hawki\_cal\_dark*(7)](/hawki_cal_dark/7.md), [*hawki\_cal\_distortion*(7)](/hawki_cal_distortion/7.md), [*hawki\_cal\_flat*(7)](/hawki_cal_flat/7.md), [*hawki\_cal\_zpoint*(7)](/hawki_cal_zpoint/7.md), [*hawki\_dark\_combine*(7)](/hawki_dark_combine/7.md), [*hawki\_linearity\_analyse*(7)](/hawki_linearity_analyse/7.md), [*hawki\_sci\_jitter*(7)](/hawki_sci_jitter/7.md), [*hawki\_science\_postprocess*(7)](/hawki_science_postprocess/7.md), [*hawki\_science\_process*(7)](/hawki_science_process/7.md), [*hawki\_standard\_process*(7)](/hawki_standard_process/7.md), [*hawki\_step\_apply\_dist*(7)](/hawki_step_apply_dist/7.md), [*hawki\_step\_basic\_calib*(7)](/hawki_step_basic_calib/7.md), [*hawki\_step\_combine*(7)](/hawki_step_combine/7.md), [*hawki\_step\_compute\_bkg*(7)](/hawki_step_compute_bkg/7.md), [*hawki\_step\_detect\_obj*(7)](/hawki_step_detect_obj/7.md), [*hawki\_step\_photom\_2mass*(7)](/hawki_step_photom_2mass/7.md), [*hawki\_step\_refine\_offsets*(7)](/hawki_step_refine_offsets/7.md), [*hawki\_step\_stats*(7)](/hawki_step_stats/7.md), [*hawki\_step\_stitch*(7)](/hawki_step_stitch/7.md), [*hawki\_step\_subtract\_bkg*(7)](/hawki_step_subtract_bkg/7.md), [*hawki\_tec\_filtchk*(7)](/hawki_tec_filtchk/7.md), [*hawki\_twilight\_flat\_combine*(7)](/hawki_twilight_flat_combine/7.md), [*hawki\_util\_gendist*(7)](/hawki_util_gendist/7.md), [*hawki\_util\_stdstars*(7)](/hawki_util_stdstars/7.md)

## VERSION

hawki\_detector\_noise 2.4.11

## AUTHOR

Jim Lewis \<jrl@ast.cam.ac.uk\>

## BUG REPORTS

Please report any problems to jrl@ast.cam.ac.uk. Alternatively, you may send a report to the ESO User Support Department \<usd-help@eso.org\>.

## LICENSE

This file is part of the HAWKI Instrument Pipeline Copyright (C) 2015 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