ASTSCRIPT-PSF-UNITE(1)

📦
version 0.24 · 4 versions
, in epel 10, epel 9, nixos 26.05, nixpkgs unstable, ubuntu resolute, ubuntu stonking

💖 astscript-psf-unite — the manual, but make it make sense 💖

okay bestie, you're looking at astscript-psf-unite(1), which lives in the User Commands section of the manual. she's part of GNU Astronomy Utilities 0.24 and she is so good at what she does. let's get into it 🫶

✨ NAME ✨

astscript-psf-unite — Unite the outer and inner regions of the PSF

🌸 SYNOPSIS 🌸

astscript-psf-unite [OPTION] FITS-files

🦋 DESCRIPTION 🦋

This script is part of GNU Astronomy Utilities 0.24.

Okay so here's the vibe: this script takes two different PSF images and joins them into a single one. That's literally the whole plot. It's intendeed to generate a single PSF by combining different PSF regions — the inner one and the outer one. Two halves of one iconic whole, yk? 💅

For more info, please run any of these commands. And listen — the first one is the main character, because it contains a very comprehensive explanation of how to invoke this script: what inputs you're expected to give, what outputs you get, and a full description of all the options. no cap.

Inputs/Outputs and options:

$ info astscript-psf-unite

Full Gnuastro manual/book:

$ info gnuastro

And if the manual is giving you nothing, if you couldn't find your answer in there, you can get direct help from experienced Gnuastro users and developers. For more information, please run:

$ info help-gnuastro

👑 astscript-psf-unite options 👑

🍓 Input:

  • -h, --hdu=STR — HDU/extension of all input FITS files. all of them. every single one. periodt.
  • -i, --inner=STR — Inner PSF FITS image. the inner one, bestie.
  • -I, --innerhdu=STR — HDU/extension of the inner PSF image.
  • -r, --radius=FLT — Radius at which the junction is done (in pixels). this is where the two regions meet up 🤝
  • -s, --scale=FLT — Factor by which the inner PSF is multiplied.
  • -Q, --axis-ratio=FLT — Axis ratio for ellipse maskprofile (A/B).
  • -p, --position-angle=FLT — Position angle for ellipse mask profile.

🎀 Output:

  • -o, --output — Output table with the radial profile.
  • -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. (iykyk — the short and long versions are a package deal 💖)

GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/

🙈 REPORTING BUGS 🙈

Report bugs to bug-gnuastro@gnu.org.

Copyright © 2020-2025 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-unite is maintained as a Texinfo manual. If the info and astscript-psf-unite programs are properly installed at your site, the command

info astscript-psf-unite

should give you access to the complete manual.

and that's the whole thing, bestie ✨ this page came to you from GNU Astronomy Utilities 0.24, dated November 2025, and it's filed under ASTSCRIPT-PSF-UNITE(1). go forth and unite those PSF regions, you've got this 💖🎀🦋

📦 where this page comes from