---
name: "vmimobsjitter"
section: "7"
platform: "linux"
package: "cpl-plugin-vimos-doc"
version: "3.2.3+dfsg-2"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/vmimobsjitter"
---

# vmimobsjitter(7)

Reduce and combine a set of jittered imaging exposures.

## NAME

vmimobsjitter - Reduce and combine a set of jittered imaging exposures.

## SYNOPSIS

esorex **vmimobsjitter** \[OPTIONS\] FILE.sof

## DESCRIPTION

This recipe is used to apply basic reduction steps to a sequence of exposures made in direct imaging mode, and to combine them in a single image. Each input image is processed in the same way as by recipe vmimobsstare, therefore what characterises the vmimobsjitter is just the final combination of the input frames.

Input files:

  DO category:              Type:       Explanation:         Required:\
   IMG\_SCIENCE               Raw         Science exposure        Y\
   MASTER\_BIAS               Calib       Master bias             Y\
   MASTER\_DARK               Calib       Master dark             .

  IMG\_MASTER\_SKY\_FLAT       Calib       Master sky flat         Y\
   PHOT\_COEFF\_TABLE          Calib       Photometric table       .

  CCD\_TABLE                 Calib       Bad pixel table         .

Output files:

  DO category:              Data type:  Explanation:\
   IMG\_SCIENCE\_REDUCED       FITS image  Reduced scientific exposure\
   IMG\_GALAXY\_TABLE          FITS table  List of detected objects\
   IMG\_FRINGES               FITS image  Fringes map

If a photometric table is specified, the magnitude zeropoint, the atmospheric extinction coefficient, and the colour term are copied from the photometric table to the header of the reduced image. The galaxy table is the output of SExtractor converted into FITS format.

A CCD table must be specified in input only if a bad pixel cleaning is requested.

For more details, please refer to the VIMOS Pipeline User´s Guide.

## OPTIONS

- **--BiasMethod** *\<str\>*

  Bias removal method. (str; default: ´Zmaster´). The full name of this option for the EsoRex configuration file is **vimos.Parameters.bias.removing.method** \[default = *Zmaster*\].

- **--CleanBadPixel** *\<bool\>*

  Bad pixel correction on reduced science images before combination. (bool; default: False). The full name of this option for the EsoRex configuration file is **vimos.Parameters.badpixel.clean** \[default = *False*\].

- **--ComputeQC** *\<bool\>*

  Compute QC1 parameters (bool; default: True). The full name of this option for the EsoRex configuration file is **vimos.Parameters.quality.enable** \[default = *True*\].

- **--Resampling** *\<str\>*

  Pixel value interpolation method. (str; default: ´BiLinear´). The full name of this option for the EsoRex configuration file is **vimos.Parameters.interpolation** \[default = *BiLinear*\].

- **--FringingCorr** *\<bool\>*

  Apply fringing corrections. (bool; default: False). The full name of this option for the EsoRex configuration file is **vimos.Parameters.fringing** \[default = *False*\].

- **--StackMethod** *\<str\>*

  Frame combination method (str; default: ´Median´). The full name of this option for the EsoRex configuration file is **vimos.Parameters.stacking.method** \[default = *Median*\].

- **--KSigmaLow** *\<float\>*

  Low threshold for K-sigma clipping method. (float; default: 5.0). The full name of this option for the EsoRex configuration file is **vimos.Parameters.stacking.ksigma.low** \[default = *5.0*\].

- **--KSigmaHigh** *\<float\>*

  High threshold for K-sigma clipping method. (float; default: 5.0). The full name of this option for the EsoRex configuration file is **vimos.Parameters.stacking.ksigma.high** \[default = *5.0*\].

- **--MinRejection** *\<int\>*

  Number of lowest rejected values for rejection method. (int; default: 1). The full name of this option for the EsoRex configuration file is **vimos.Parameters.stacking.minmax.minimum** \[default = *1*\].

- **--MaxRejection** *\<int\>*

  Number of highest rejected values for rejection method. (int; default: 1). The full name of this option for the EsoRex configuration file is **vimos.Parameters.stacking.minmax.maximum** \[default = *1*\].

- **--TemperatureCheck** *\<bool\>*

  Check beam temperature when updating the world coordinate system. (bool; default: True). The full name of this option for the EsoRex configuration file is **vimos.Parameters.temperature.check** \[default = *True*\].

- **--TemperatureTolerance** *\<float\>*

  Maximum allowed difference between beam and ambient temperature. (float; default: 3.0). The full name of this option for the EsoRex configuration file is **vimos.Parameters.temperature.tolerance** \[default = *3.0*\].

- **--StarIndex** *\<float\>*

  Stellarity index used to select stars in the image. (float; default: 0.5). The full name of this option for the EsoRex configuration file is **vimos.Parameters.matching.stellarity** \[default = *0.5*\].

- **--SExtractor.AnalysisThresh** *\<float\>*

  Surface brightness threshold for FWHM computation. (float; default: 2.5). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AnalysisThresh** \[default = *2.5*\].

- **--SExtractor.AssocData** *\<str\>*

  Column indices for columns to copy to the catalog output. (str; default: ´2,3,4´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AssocData** \[default = *2,3,4*\].

- **--SExtractor.AssocName** *\<str\>*

  Name of the ASSOC file. (str; default: ´sky.list´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AssocName** \[default = *sky.list*\].

- **--SExtractor.AssocParams** *\<str\>*

  Column indices in the ASSOC file to use as coordinates and weight for cross-matching. (str; default: ´2,3,4´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AssocParams** \[default = *2,3,4*\].

- **--SExtractor.AssocRadius** *\<float\>*

  Search radius for ASSOC. (float; default: 2.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AssocRadius** \[default = *2.0*\].

- **--SExtractor.AssocSelecType** *\<str\>*

  Output selector for detected sources. (str; default: ´MATCHED´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AssocSelecType** \[default = *MATCHED*\].

- **--SExtractor.AssocType** *\<str\>*

  Method for cross-matching. (str; default: ´MAG\_SUM´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.AssocType** \[default = *MAG\_SUM*\].

- **--SExtractor.BackFilterSize** *\<int\>*

  Size (in background meshes) of the background filtering mask. (int; default: 3). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.BackFilterSize** \[default = *3*\].

- **--SExtractor.BackPhotoThick** *\<int\>*

  Thickness of the background LOCAL annulus. (int; default: 24). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.BackPhotoThick** \[default = *24*\].

- **--SExtractor.BackPhotoType** *\<str\>*

  Select background for magnitude computation. (str; default: ´GLOBAL´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.BackPhotoType** \[default = *GLOBAL*\].

- **--SExtractor.BackSize** *\<int\>*

  Size of a background mesh. (int; default: 64). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.BackSize** \[default = *64*\].

- **--SExtractor.BackValue** *\<float\>*

  Constant to subtract from the images for MANUAL background subtraction. (float; default: 0.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.BackValue** \[default = *0.0*\].

- **--SExtractor.CatalogType** *\<str\>*

  Select output catalog format (only ASCII\_HEAD is supported). (str; default: ´ASCII\_HEAD´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.CatalogType** \[default = *ASCII\_HEAD*\].

- **--SExtractor.CheckImageName** *\<str\>*

  Check image file name. (str; default: ´check.fits´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.CheckImageName** \[default = *check.fits*\].

- **--SExtractor.CheckImageType** *\<str\>*

  Select information to put in the \`check image´. (str; default: ´NONE´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.CheckImageType** \[default = *NONE*\].

- **--SExtractor.Clean** *\<str\>*

  If \`Y´, clean catalog before writing. (str; default: ´Y´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.Clean** \[default = *Y*\].

- **--SExtractor.CleanParam** *\<float\>*

  Cleaning efficiency. (float; default: 1.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.CleanParam** \[default = *1.0*\].

- **--SExtractor.DeblendMinCont** *\<float\>*

  Minimum contrast for deblending. (float; default: 0.005). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.DeblendMinCont** \[default = *0.005*\].

- **--SExtractor.DeblendNthresh** *\<int\>*

  Number of deblending sub-thresholds. (int; default: 32). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.DeblendNthresh** \[default = *32*\].

- **--SExtractor.DetectMinArea** *\<int\>*

  Minimum number of pixels above threshold triggering detection. (int; default: 5). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.DetectMinArea** \[default = *5*\].

- **--SExtractor.DetectThresh** *\<float\>*

  Detection threshold (relative to background RMS). (float; default: 2.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.DetectThresh** \[default = *2.0*\].

- **--SExtractor.DetectType** *\<str\>*

  Device type the image originates from. (str; default: ´CCD´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.DetectType** \[default = *CCD*\].

- **--SExtractor.Filter** *\<str\>*

  If \`Y´, filter data before extraction. (str; default: ´N´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.Filter** \[default = *N*\].

- **--SExtractor.FilterName** *\<str\>*

  Name of the file containing the filter definition. (str; default: ´/usr/share/esopipes/vimos-3.2.3/config/vimos.conv´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.FilterName** \[default = */usr/share/esopipes/vimos-3.2.3/config/vimos.conv*\].

- **--SExtractor.FilterThresh** *\<str\>*

  Lower, upper threshold (in background sigmas) for filtering (retina- filtering only). (str; default: ´´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.FilterThresh** \[default = \].

- **--SExtractor.FlagImage** *\<str\>*

  Flag image file name. (str; default: ´flag.fits´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.FlagImage** \[default = *flag.fits*\].

- **--SExtractor.FlagType** *\<str\>*

  Flag combination method. (str; default: ´OR´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.FlagType** \[default = *OR*\].

- **--SExtractor.InterpMaxXlag** *\<int\>*

  Maximum X gap allowed in interpolation. (int; default: 16). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.InterpMaxXlag** \[default = *16*\].

- **--SExtractor.InterpMaxYlag** *\<int\>*

  Maximum Y gap allowed in interpolation. (int; default: 16). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.InterpMaxYlag** \[default = *16*\].

- **--SExtractor.InterpType** *\<str\>*

  Interpolation method. (str; default: ´ALL´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.InterpType** \[default = *ALL*\].

- **--SExtractor.MagGamma** *\<float\>*

  Gamma of emulsion (only used in PHOTO mode). (float; default: 4.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.MagGamma** \[default = *4.0*\].

- **--SExtractor.MagZeropoint** *\<float\>*

  Zero-point offset to apply to magnitudes. (float; default: 0.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.MagZeropoint** \[default = *0.0*\].

- **--SExtractor.MaskType** *\<str\>*

  Masking of neighbours for photometry. (str; default: ´CORRECT´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.MaskType** \[default = *CORRECT*\].

- **--SExtractor.MemoryBufSize** *\<int\>*

  Number of scan-lines in the image buffer. (int; default: 1024). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.MemoryBufSize** \[default = *1024*\].

- **--SExtractor.MemoryObjStack** *\<int\>*

  Maximum number of objects the object stack can contain. (int; default: 2000). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.MemoryObjStack** \[default = *2000*\].

- **--SExtractor.MemoryPixStack** *\<int\>*

  Maximum number of pixels the pixel stack can contain. (int; default: 100000). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.MemoryPixStack** \[default = *100000*\].

- **--SExtractor.PhotApertures** *\<float\>*

  Aperture diameters used for MAG\_APER. (float; default: 5.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.PhotApertures** \[default = *5.0*\].

- **--SExtractor.PhotAutoParams** *\<str\>*

  MAG\_AUTO controls: 1st order moment scaling parameter, minimum Rmin. (str; default: ´2.5,3.5´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.PhotAutoParams** \[default = *2.5,3.5*\].

- **--SExtractor.SExtractor** *\<str\>*

  Path to the sextractor executable. (str; default: ´/usr/bin/sex´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.SExtractor** \[default = */usr/bin/sex*\].

- **--SExtractor.SaturLevel** *\<float\>*

  Pixel values above are considered saturated. (float; default: 60000.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.SaturLevel** \[default = *60000.0*\].

- **--SExtractor.StarNnwName** *\<str\>*

  Name of the neuronal network weights file. (str; default: ´/usr/share/esopipes/vimos-3.2.3/config/vimos.nnw´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.StarNnwName** \[default = */usr/share/esopipes/vimos-3.2.3/config/vimos.nnw*\].

- **--SExtractor.Timeout** *\<float\>*

  Time after which sextractor will be aborted. (float; default: 300.0). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.Timeout** \[default = *300.0*\].

- **--SExtractor.VerboseType** *\<str\>*

  Selects verbosity level. (str; default: ´QUIET´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.VerboseType** \[default = *QUIET*\].

- **--SExtractor.WeightType** *\<str\>*

  Selects the weighting scheme. (str; default: ´NONE´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.WeightType** \[default = *NONE*\].

- **--SExtractor.Window** *\<str\>*

  Frame window used in SExtractor detection. (str; default: ´100,100,1948,2340´). The full name of this option for the EsoRex configuration file is **vimos.SExtractor.Window** \[default = *100,100,1948,2340*\].

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

-

  **ftp://ftp.eso.org/pub/dfs/pipelines/vimos/vimos-pipeline-manual-6.9.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 vimos pipeline are [*vmbias*(7)](/vmbias/7.md), [*vmdark*(7)](/vmdark/7.md), [*vmdet*(7)](/vmdet/7.md), [*vmifucalib*(7)](/vmifucalib/7.md), [*vmifucombine*(7)](/vmifucombine/7.md), [*vmifucombinecube*(7)](/vmifucombinecube/7.md), [*vmifuscience*(7)](/vmifuscience/7.md), [*vmifustandard*(7)](/vmifustandard/7.md), [*vmimcalphot*(7)](/vmimcalphot/7.md), [*vmimflatscreen*(7)](/vmimflatscreen/7.md), [*vmimflatsky*(7)](/vmimflatsky/7.md), [*vmimobsstare*(7)](/vmimobsstare/7.md), [*vmimpreimaging*(7)](/vmimpreimaging/7.md), [*vmimstandard*(7)](/vmimstandard/7.md), [*vmmoscalib*(7)](/vmmoscalib/7.md), [*vmmoscombine*(7)](/vmmoscombine/7.md), [*vmmosobsjitter*(7)](/vmmosobsjitter/7.md), [*vmmosobsstare*(7)](/vmmosobsstare/7.md), [*vmmosscience*(7)](/vmmosscience/7.md), [*vmmosstandard*(7)](/vmmosstandard/7.md), [*vmspcaldisp*(7)](/vmspcaldisp/7.md), [*vmspflat*(7)](/vmspflat/7.md), [*vmspphot*(7)](/vmspphot/7.md)

## VERSION

vmimobsjitter 3.2.3

## AUTHOR

ESO VIMOS Pipeline Team and VIMOS Consortium \<usd-help@eso.org\>

## BUG REPORTS

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

## LICENSE

This file is currently part of the VIMOS 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 St, Fifth Floor, Boston, MA  02110-1301  USA
