astscript-psf-scale-factor

NAME

astscript-psf-scale-factor - Find factor to scale PSF to a given star in an image

SYNOPSIS

astscript-psf-scale-factor [ OPTION] FITS-files

DESCRIPTION

This script is part of GNU Astronomy Utilities 0.19. This script will consider a center position and then compute the factor by which it is necessary to multiply the specified PSF image in order to match it with the object at the center (within a ring radii). The main idea is to have the necessary factor that will be used to allocate the PSF with the proper flux value for constructing the scattered light field. For more information, please run any of the following commands. In particular the first contains a very comprehensive explanation of this script's invocation: expected input(s), output(s), and a full description of all the options.

Inputs/Outputs and options:

$ info astscript-psf-scale-factor

Full Gnuastro manual/book:

$ info gnuastro

If you couldn't find your answer in the manual, you can get direct help from experienced Gnuastro users and developers. For more information, please run:

$ info help-gnuastro

astscript-psf-scale-factor options:

Input:

-h, --hdu=STR

HDU/extension of all input FITS files.

-p, --psf=STR

PSF image fits file.

-P, --psfhdu=STR

HDU/extension of the PSF image.

-O, --mode=STR

Coordinates mode ('wcs' or 'img').

-c, --center=FLT,FLT

Center coordinates of the object.

-n, --normradii=INT,INT Minimum and maximum radii (in pixels)

for computing the scaling factor value.

-S, --segment=STR

Output of Segment (with OBJECTS and CLUMPS).

Output:

-t, --tmpdir

Directory to keep temporary files.

-k, --keeptmp

Keep temporal/auxiliar files.

Operating mode:

-?, --help

Print this help list.

--cite

BibTeX citation for this program.

-q, --quiet

Don't print any extra information in stdout.

-V, --version

Print program version.

Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/

REPORTING BUGS

Report bugs to [email protected].

COPYRIGHT

Copyright © 2020-2022 Free Software Foundation, Inc. License GPLv3+: GNU General public license version 3 or later. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written/developed by Raul Infante-Sainz

SEE ALSO

The full documentation for astscript-psf-scale-factor is maintained as a Texinfo manual. If the info and astscript-psf-scale-factor programs are properly installed at your site, the command

info astscript-psf-scale-factor

should give you access to the complete manual.