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ASTSCRIPT-ZEROPOINT(1)		 User Commands		ASTSCRIPT-ZEROPOINT(1)

NAME
       astscript-zeropoint - Estimate zero point of an image

SYNOPSIS
       astscript-zeropoint [OPTIONS] image.fits

DESCRIPTION
       Calculate  the  Zeropoint  of  the image	based on a reference images or
       catalog.

   astscript-zeropoint options:
	      Input(s):

       -h, --hdu=STR/INT
	      HDU/Extension name or number of input.

       -S, --starcat=STR
	      Catalog with positions for aperture photomery.

       --starcathdu=STR/INT
	      HDU of table in '--starcat'.

       --starcatra=STR/INT
	      Column in	'--starcat' that contains RA.

       --starcatdec=STR/INT
	      Column in	'--starcat' that contains DEC.

       --mksrc=STR
	      Makefile (for developers when debugging).

	      Output:

       -o, --output
	      Output file name.

       -t, --tmpdir
	      Directory	to keep	temporary files.

       -k, --keeptmp
	      Keep temporal/auxiliar files.

       -K, --keepzpap
	      Keep each	aperture's zp in a different HDU.

	      General settings

       -a, --aperarcsec=FLT[,FLT]
	      Aperture radius (in arc-seconds) for photometry.

       -M, --magnituderange=FLT,FLT Range of the magnitude to be considered.

	      Reference	catalog	mode

       -c, --refcat=STR
	      Reference	catalog	file name.

       -C, --refcathdu=STR/INT
	      Reference	catalog	HDU name of number.

       -r, --refcatra=STR
	      Reference	catalog	Right Ascension	(R.A.) column.

       -d, --refcatdec=STR
	      Reference	catalog	Declination (Dec) column.

       -m, --refcatmag=STR
	      Reference	catalog	Magnitude column.

       -s, --matchradius=FLT
	      Radius (arcsec) to match stars and ref. catalog.

	      Reference	image mode

       -R, --refimgs=STR[,STR]
	      Reference	image name(s) with known zeropoint.

       -H, --refimgshdu=STR/INT
	      Reference	image HDU name(s) or number (s).

       -z, --refimgszp=FLT[,FLT]
	      Zero point(s) of the reference image(s).

	      Operating	mode:

       -h, --help
	      Print this help.

       --cite BibTeX citation for this program.

       -q, --quiet
	      Don't print any extra information	in stdout.

       -V, --version
	      Print program version.

       -N, --numthreads=INT
	      Number of	threads; maximum if not	given.

       Mandatory or optional arguments to long options are also	 mandatory  or
       optional	for any	corresponfing 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) 2022-2024 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 Sepideh Eskandarlou	et al.

SEE ALSO
       The  full documentation for astscript-zeropoint is maintained as	a Tex-
       info manual.  If	the info and astscript-zeropoint programs are properly
       installed at your site, the command

	      info astscript-zeropoint

       should give you access to the complete manual.

GNU Astronomy Utilities	0.23	   July	2024		ASTSCRIPT-ZEROPOINT(1)

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

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