---
name: "astscript-psf-stamp"
section: "1"
platform: "linux"
package: "gnuastro"
version: "0.23-2+b3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/astscript-psf-stamp"
---

# astscript-psf-stamp(1)

Make normalized stamp with other sources masked

## NAME

astscript-psf-stamp - Make normalized stamp with other sources masked

## SYNOPSIS

**astscript-psf-stamp** \[*OPTION*\] *FITS-files*

## DESCRIPTION

This script is part of GNU Astronomy Utilities 0.23.

This script will consider a center position to make a normalized stamp. It is intendeed to generate several stamps and combine them to obtain a PSF.

For more information, please run any of the following commands. In particular the first contains a very comprehensive explanation of this script's invocation: expected input(s), output(s), and a full description of all the options.

- Inputs/Outputs and options:

  $ info astscript-psf-stamp

- 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-stamp options:

-

  Input:

- **-h**, **--hdu**=*STR*

  HDU/extension of all input FITS files.

- **-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.

- **-T**, **--snthresh**=*FLT*

  Mask pixels below this S/N (only when '--segment' is given).

- **-n**, **--normradii**=*INT*,INT Minimum and maximum radii (in pixels)

  for computing the normalization value.

- **-S**, **--segment**=*STR*

  Output of Segment (with OBJECTS and CLUMPS).

- **-N**, **--normop**=*STR*

  Operator for computing the normalization value (mean, sigclip-mean, etc.).

- **-Q**, **--axis-ratio**=*FLT*

  Axis ratio for ellipse maskprofile (A/B).

**-p**, **--position-angle**=*FLT* Position angle for ellipse mask profile.

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

- **-d**, **--nocentering**

  Don't warp the center coord to central pixel.

-

  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.

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

## REPORTING BUGS

Report bugs to bug-gnuastro@gnu.org.

## COPYRIGHT

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

-

  **info astscript-psf-stamp**

should give you access to the complete manual.