ASTSCRIPT-PSF-STAMP(1)

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

✨ NAME ✨

astscript-psf-stamp — make a normalized stamp with all the other sources masked out 🎀

🌸 SYNOPSIS 🌸

astscript-psf-stamp [OPTION] FITS-files

💖 DESCRIPTION 💖

Okay bestie, sit down, hydrate, this one's cute. astscript-psf-stamp is part of GNU Astronomy Utilities 0.24 🦋

So what does it do? You give it a center position, and it builds you a normalized stamp. The whole point is that you make a bunch of these stamps and then combine them all together to get yourself a PSF. That's it, that's the mission. 👑

Want the full tea? Run any of these, and lowkey the first one is the main character because it has the very comprehensive explanation of how to invoke this script: what inputs it expects, what outputs you get, and a full description of every single option:

Inputs/Outputs and options:

$ info astscript-psf-stamp

Full Gnuastro manual/book:

$ info gnuastro

And if the manual is giving nothing and you're still lost, no worries — you can get direct help from experienced Gnuastro users and developers. For more info, run:

$ info help-gnuastro

💅 OPTIONS 💅

🔥 astscript-psf-stamp options:

🌈 Input:

  • -h, --hdu=STR — the HDU/extension that all your input FITS files live in.
  • -O, --mode=STR — what coordinate mode we're in, either 'wcs' or 'img'.
  • -c, --center=FLT,FLT — the center coordinates of your object, bestie.
  • -W, --widthinpix=INT,INT — how wide the stamp is, in pixels.
  • -T, --snthresh=FLT — masks out any pixel below this S/N. Heads up: this one only does anything when --segment is given.
  • -n, --normradii=INT,INT — the minimum and maximum radii, in pixels, used for computing the normalization value.
  • -S, --segment=STR — the output of Segment (the one with OBJECTS and CLUMPS).
  • -N, --normop=STR — the operator used for computing the normalization value (mean, sigclip-mean, etc.).
  • -Q, --axis-ratio=FLT — the axis ratio for the ellipse maskprofile, that's A/B.
  • -p, --position-angle=FLT — the position angle for the ellipse mask profile.
  • -s, --sigmaclip=FLT,FLT — sigma-clip multiple and tolerance.
  • -d, --nocentering — don't warp the center coordinate to the central pixel. Leave it where it is.

✨ Output:

  • -o, --output — output table with the radial profile.
  • -t, --tmpdir — the directory where temporary files get kept.
  • -k, --keeptmp — keep those temporal/auxiliar files around.

🫶 Operating mode:

  • -?, --help — prints this help list.
  • --cite — BibTeX citation for this program.
  • -q, --quiet — don't print any extra info to stdout.
  • -V, --version — prints the program version.
Quick PSA 🚨: any mandatory or optional argument that belongs to a long option is also mandatory or optional for the matching short option. They're a package deal, periodt.

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

😭 REPORTING BUGS 😭

Found a bug? Report it to bug-gnuastro@gnu.org. We appreciate you fr fr 🙈

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. Like, none. Zero. 🫥

Written/developed by Raul Infante-Sainz — iconic behavior, honestly 💜

🌟 SEE ALSO 🌟

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

info astscript-psf-stamp

should give you access to the complete manual. Go read it, it's giving ✨

That's the whole page, babe 💖 — this was GNU Astronomy Utilities 0.24, from November 2025, and you're officially a astscript-psf-stamp girlie now. Go make some stamps and slay 🎀✨

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