SExtractor CEA ivo://org.astrogrid/SExtractor Astrogrid Astrogrid ?? 2004-03-26 1.0 Paul Harrison pah@jb.man.ac.uk ??? SExtractor is a program that builds a catalogue of objects from an astronomical image. Although it is particularly oriented towards reduction of large scale galaxy-survey data, it performs rather well on moderately crowded star fields. http://terapix.iap.fr/cplt/oldSite/soft/sextractor/ Other Detection Image The image that is used to detect sources. Basic position, shape and size information is derived from this image Measurement Image The Image that is used to measure photometric parameters Configuration File File containing the main configuration parameters for SExtractor Parameter File A File containing the list of catalogue paramters that should be computed Derived output catalogue The catalogue of images derived from the input images Input image band The input image measuerment band. This is used to form the column name in the output VOTable for the measured photometry. detection filter the convolution filter (you can use the standard sextractor filters simply by naming them here) file:///home/applications/tools/sextractor-2.3.2/config/default.conv detection type CCD CCD PHOTO flag image minimum detection area minimum number of pixels above threshold 5 Detection Threshold sigmas or threshold,ZP in mag.arcsec-2 1.5 Analysis Threshold sigmas or threshold,ZP in mag.arcsec-2 1.5 use filter apply filter for detection Deblend thresholds Number of deblending sub-thresholds 32 de-blend contrast Minimum contrast parameter for deblending 0.005 Clean? Clean spurious detections? (Y or N)? Y Cleaning efficiency Cleaning Efficiency 1.0 Mask type type of detection MASKing: can be one of "NONE", "BLANK" or "CORRECT" CORRECT NONE BLANK CORRECT Photometry apertures MAG_APER aperture diameter(s) in pixels 5 Photometry params MAG_AUTO parameters: <Kron_fact>,>min_radius> magnitude zero-point magnitude zero-point 0.0 MAG_GAMMA gamma of emulsion (for photographic scans) 4.0 Gain detector gain in e-/ADU 0.0 Pixel scale size of pixel in arcsec (0=use FITS WCS info) Seeing stellar FWHM in arcsec 1.2 neural net file Neural-Network_Weight table filename backgroud mesh size background filter size GLOBAL LOCAL Check image NONE BACKGROUND MINIBACKGROUND -BACKGROUND OBJECTS -OBJECTS SEGMENTATION APERTURES FILTERED Checkimage name file containing the checkimage

/home/applications/tools/sextractor-2.3.2/sex_wrapper.sh