fors_detect_objects(7) Detect objects in slit spectra


esorex fors_detect_objects [OPTIONS] FILE.sof


This recipe is used to detect scientific objects spectra on a resampled image produced with recipe fors_resample. Please refer to the FORS Pipeline User's Manual for more details on object detection.

In the table below the MXU acronym can be alternatively read as MOS and LSS, and SCI as STD.

Input files:

  DO category:               Type:       Explanation:         Required:
  MAPPED_SCI_MXU             Calib       Resampled slit spectra  Y
  SLIT_LOCATION_MXU          Calib       Slit location on image  Y Output files:

  DO category:               Data type:  Explanation:
  OBJECT_TABLE_SCI_MXU       FITS table  Object positions in slit spectra


--slit_margin <long>
Number of pixels to exclude at each slit in object detection and extraction (long; default: 3). The full name of this option for the EsoRex configuration file is fors.fors_detect_objects.slit_margin [default = 3].
--ext_radius <long>
Maximum extraction radius for detected objects (pixel) (long; default: 6). The full name of this option for the EsoRex configuration file is fors.fors_detect_objects.ext_radius [default = 6].
--cont_radius <long>
Minimum distance at which two objects of equal luminosity do not contaminate each other (pixel) (long; default: 0). The full name of this option for the EsoRex configuration file is fors.fors_detect_objects.cont_radius [default = 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.


fors_detect_objects 5.3.5


Carlo Izzo <[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 currently part of the FORS Instrument Pipeline Copyright (C) 2002-2010 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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