shapepipe.modules.sextractor_package

shapepipe.modules.sextractor_package

SEXTRACTOR MODULE.

This package contains the module for sextractor.

Author

Axel Guinot

Parent module

mask_runner

Input

Single-exposure single-CCD image, weight and flag files

Output

SExtractor output catalogue

Description

This module calls the community standard source extraction software SExtractor [Bertin and Arnouts, 1996] to detect objects in the input images. All of the standard SExtractor options can be used by specifying the paths to the appropriate configuration files.

Post-processing steps can be carried out to add additional FITS HDUs to tile catalogues for each exposure, indicating the CCD number.

Module-specific config file entries

EXEC_PATHstr, optional

Full path to the SExtractor executable (sex) on the system; if not set the version controlled SExtractor installation in the ShapePipe environment will be used

DOT_SEX_FILEstr

Full path to the .sex configuration file for SExtractor

DOT_PARAM_FILEstr

Full path to the .param configuration file for SExtractor

DOT_CONV_FILEstr

Full path to the .conv kernel file for SExtractor

WEIGHT_IMAGEbool

Option to specify if weight files have been provided

FLAG_IMAGEbool

Option to specify if flag files have been provided

PSF_FILEbool

Option to specify if PSF files have been provided

DETECTION_IMAGEbool

Option to specify if detection images have been provided

DETECTION_WEIGHTbool

Option to specify if detection weights have been provided

ZP_FROM_HEADERbool

Option to to use magnitude zero points defined in the image headers

ZP_KEYstr, optional

Name of header key for magnitude zero points

BKG_FROM_HEADERbool

Option to to use background levels defined in the image headers

BKG_KEYstr, optional

Name of header key for background levels

CHECKIMAGElist, optional

List of header key names corresponding to check images

PREFIXstr, optional

Output file name prefix

MAKE_POST_PROCESSbool

Option to run post-processing steps

LOG_WCSstr, optional

Path to world coordinate system log file (*sqlite)

WORLD_POSITIONlist, optional

List of world coordinates to use to match objects

CCD_SIZElist, optional

Size of a CCD in pixels [nx, ny]