/usr/share/sextractor/default.sex is in sextractor 2.4.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | # Default configuration file for SExtractor 2.3.5
# EB 2004-12-15
#
#-------------------------------- Catalog ------------------------------------
CATALOG_NAME test.cat # name of the output catalog
CATALOG_TYPE ASCII_HEAD # "NONE","ASCII_HEAD","ASCII","FITS_1.0"
# or "FITS_LDAC"
PARAMETERS_NAME default.param # name of the file containing catalog contents
#------------------------------- Extraction ----------------------------------
DETECT_TYPE CCD # "CCD" or "PHOTO"
FLAG_IMAGE flag.fits # filename for an input FLAG-image
DETECT_MINAREA 5 # minimum number of pixels above threshold
DETECT_THRESH 1.5 # <sigmas> or <threshold>,<ZP> in mag.arcsec-2
ANALYSIS_THRESH 1.5 # <sigmas> or <threshold>,<ZP> in mag.arcsec-2
FILTER Y # apply filter for detection ("Y" or "N")?
FILTER_NAME default.conv # name of the file containing the filter
DEBLEND_NTHRESH 32 # Number of deblending sub-thresholds
DEBLEND_MINCONT 0.005 # Minimum contrast parameter for deblending
CLEAN Y # Clean spurious detections? (Y or N)?
CLEAN_PARAM 1.0 # Cleaning efficiency
MASK_TYPE CORRECT # type of detection MASKing: can be one of
# "NONE", "BLANK" or "CORRECT"
#------------------------------ Photometry -----------------------------------
PHOT_APERTURES 5 # MAG_APER aperture diameter(s) in pixels
PHOT_AUTOPARAMS 2.5, 3.5 # MAG_AUTO parameters: <Kron_fact>,<min_radius>
PHOT_PETROPARAMS 2.0, 3.5 # MAG_PETRO parameters: <Petrosian_fact>,
# <min_radius>
SATUR_LEVEL 50000.0 # level (in ADUs) at which arises saturation
MAG_ZEROPOINT 0.0 # magnitude zero-point
MAG_GAMMA 4.0 # gamma of emulsion (for photographic scans)
GAIN 0.0 # detector gain in e-/ADU
PIXEL_SCALE 1.0 # size of pixel in arcsec (0=use FITS WCS info)
#------------------------- Star/Galaxy Separation ----------------------------
SEEING_FWHM 1.2 # stellar FWHM in arcsec
STARNNW_NAME default.nnw # Neural-Network_Weight table filename
#------------------------------ Background -----------------------------------
BACK_SIZE 64 # Background mesh: <size> or <width>,<height>
BACK_FILTERSIZE 3 # Background filter: <size> or <width>,<height>
BACKPHOTO_TYPE GLOBAL # can be "GLOBAL" or "LOCAL"
#------------------------------ Check Image ----------------------------------
CHECKIMAGE_TYPE NONE # can be one of "NONE", "BACKGROUND",
# "MINIBACKGROUND", "-BACKGROUND", "OBJECTS",
# "-OBJECTS", "SEGMENTATION", "APERTURES",
# or "FILTERED"
CHECKIMAGE_NAME check.fits # Filename for the check-image
#--------------------- Memory (change with caution!) -------------------------
MEMORY_OBJSTACK 3000 # number of objects in stack
MEMORY_PIXSTACK 300000 # number of pixels in stack
MEMORY_BUFSIZE 1024 # number of lines in buffer
#----------------------------- Miscellaneous ---------------------------------
VERBOSE_TYPE NORMAL # can be "QUIET", "NORMAL" or "FULL"
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