---
name: "imrot"
section: "1"
platform: "linux"
package: "wcstools"
version: "3.9.7-1.1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/imrot"
---

# imrot(1)

Rotate and/or Reflect FITS and IRAF image files

## Name

imrot - Rotate and/or Reflect FITS and IRAF image files

## Synopsis

imrot \[options\] Fits or IRAF file(s)

## Description

*imrot* is a utility for rotating and/or reflecting FITS or IRAF images.  Images can be rotated only in multiples of 90 degrees.  The image may be output with a different data type than that in which it is input, and IRAF files may be written out as FITS files.

## Options

**-a** Mirror if IRAF image WCS says to **-f** Write FITS image from IRAF input **-l** Reflect image across vertical axis **-o** Allow overwriting of input image, else write new one **-r \<angle\>** Image rotation angle in degrees (default 0) **-s** Split multi-extension FITS file **-v** Verbose **-x \<num\>** Output pixel size in bits (FITS code, default=input) Allowed values are 8, 16, 32 for integers, -16 for unsigned integers, and -32 and -64 for 4- and 8-byte floating point numbers

## Author

Jessica Mink, SAO (jmink@cfa.harvard.edu)