Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
ASTSCRIPT-PSF-SCALE-FACTOR(1)	 User Commands	 ASTSCRIPT-PSF-SCALE-FACTOR(1)

NAME
       astscript-psf-scale-factor - Find factor	to scale PSF to	a given	star

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

DESCRIPTION
       This script is part of GNU Astronomy Utilities 0.23.

       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 par-
       ticular	the  first  contains  a	very comprehensive explanation of this
       script's	invocation: expected input(s), output(s), and a	full  descrip-
       tion 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.

       -W, --widthinpix=INT,INT	Width of the stamp in pixels.

       -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).

       -s, --sigmaclip=FLT,FLT Sigma-clip multiple and tolerance.

       -d, --nocentering
	      Do not do	the sub-pixel centering	to new pix grid.

	      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/gnuas-
       tro/

REPORTING BUGS
       Report bugs to bug-gnuastro@gnu.org.

COPYRIGHT
       Copyright (C) 2020-2024 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.

GNU Astronomy Utilities	0.23	   July	2024	 ASTSCRIPT-PSF-SCALE-FACTOR(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=astscript-psf-scale-factor&sektion=1&manpath=FreeBSD+Ports+15.0>

home | help