The default preferences

This is a listing of $EXTRACTOR_DIR/config/default.sex, the installed default preferences file.

# Default configuration file for SExtractor 2.5.0
# EB 2006-07-14

#-------------------------------- Catalog ------------------------------------

CATALOG_NAME    test.cat        # name of the output catalog
CATALOG_TYPE     ASCII_HEAD     # NONE,ASCII,ASCII_HEAD, ASCII_SKYCAT,
                                # ASCII_VOTABLE, FITS_1.0 or FITS_LDAC
PARAMETERS_NAME  $EXTRACTOR_DIR/config/default.param
                                # name of the file containing catalog contents

#------------------------------- Extraction ----------------------------------

DETECT_TYPE      CCD            # CCD (linear) or PHOTO (with gamma correction)
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      $EXTRACTOR_DIR/config/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             1.0            # 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     $EXTRACTOR_DIR/config/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 NONE, BACKGROUND, BACKGROUND_RMS,
                                # MINIBACKGROUND, MINIBACK_RMS, -BACKGROUND,
                                # FILTERED, OBJECTS, -OBJECTS, SEGMENTATION,
                                # or APERTURES
CHECKIMAGE_NAME  check          # 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
WRITE_XML        N              # Write XML file (Y/N)?
XML_NAME         sex.xml        # Filename for XML output