ASTSCRIPT-RADIAL-PROFILE(1)

💖 NAME 💖

astscript-radial-profile — bestie, it makes a radial profile of an object in an image. That's the whole vibe. ✨

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🌸 SYNOPSIS 🌸

astscript-radial-profile [OPTION] FITS-files

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🦋 DESCRIPTION 🦋

okay so first things first: this script is part of GNU Astronomy Utilities 0.24. 💅

What it does is it takes your input image and builds a radial profile around a center you pick, using elliptical apertures. It's giving very "measure the light as you go outward" energy. 🎀

Now, if you want the full lore, run any of these commands. And lowkey the first one is THE one, because it has the super comprehensive explanation of how to invoke this script: what inputs it expects, what outputs you get, and a full rundown of every single option. 👑

Inputs/Outputs and options:

$ info astscript-radial-profile

Full Gnuastro manual/book:

$ info gnuastro

And if the manual isn't answering your question (been there 😭), you can get direct help from experienced Gnuastro users and developers. For more info, just run:

$ info help-gnuastro

✨ astscript-radial-profile options: ✨

💜 Input:

• -h, --hdu=STR — the HDU/extension for all your input FITS files. 🗂️
• -O, --mode=STR — coordinate mode, and your choices are img or wcs.
• -c, --center=FLT,FLT — where the center sits, along 2 axes. 📍
• -R, --rmax=FLT — the maximum radius for the radial profile, measured in pixels.
• -Q, --axis-ratio=FLT — the axis ratio for ellipse profiles (that's A/B).
• -a, --azimuth=FLT,FLT — the azimuthal range(s), measured from the major axis.
• -p, --position-angle=FLT — the position angle for ellipse profiles.
• -g, --polar — a polar plot, aka azimuth angle vs. radius. 📐
• -s, --sigmaclip=FLT,FLT — sigma-clip multiple and tolerance.
• -z, --zeropoint=FLT — the zeropoint magnitude of your input dataset.
• -Z, --zeroisnotblank — ngl, this one says 0.0 in float or double images are NOT blank. 🚨
• -i, --instd=FLT/STR — sky standard deviation per pixel, either as a single number or as a filename (which gets handed over to MakeCatalog).
• -d, --stdhdu=STR — the HDU/extension of the sky standard deviation image.

🎀 Output:

• -o, --output — the output table with the radial profile. 📊
• -t, --tmpdir — the directory where temporary files live.
• -k, --keeptmp — keep those temporal/auxiliar files around.
• -m, --measure=STR — the measurement operator (mean, sigclip-mean, etc.).
• -P, --precision=INT — how many digits after the decimal point for the radius.
• -v, --oversample=INT — oversample, for a higher resolution radial profile. 🔍
• -u, --undersample=INT — undersample, for a lower resolution radial profile.

🌈 Operating mode:

• -?, --help — prints this help list. 🫶
• --cite — BibTeX citation for this program.
• -q, --quiet — don't print any extra information in stdout. 🤫
• -V, --version — prints the program version.

fr fr, remember: mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. no cap. 💯

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

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😭 REPORTING BUGS 😭

Found a bug? Tell the devs! Report bugs to bug-gnuastro@gnu.org. They wanna know, bestie. 🐛

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👑 COPYRIGHT 👑

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 🌟

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🌸 SEE ALSO 🌸

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

info astscript-radial-profile

should give you access to the complete manual. iykyk 💖

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and that's a wrap, bestie!! this was the astscript-radial-profile page from GNU Astronomy Utilities 0.24, dated November 2025 🦋✨ go forth and profile those radials, you absolute icon 👑💅