Jan 13, 2022 · Synopsis: The imaging application SAOImage ds9 is distributed with CIAO as the default imager. It is developed independently from CIAO but does contain some CIAO-specific features.

Feb 15, 2022 · SAOImage ds9, the imaging application distributed with CIAO, has the capability for users to create an RGB image and interactively adjust many of its parameters to achieve optimal …

Dec 10, 2025 · Problems with Xquartz 2.8.5 Some users have reported problems related to disappearing menus using ds9 with Xquartz version 2.8.5 which was released on January 26, 2023. This appears …

Jan 24, 2022 · Overview Synopsis: The tool dmgroupreg takes a ds9 region file (which must contain grouping information) and creates source and background region files that the CIAO tools can …

Last Update: 8 Dec 2025 - updated for CIAO 4.18; added note about using DS9 preferences to image data sets via Sherpa.

As one option, in ds9, you can select Analysis/Archives/SkyView, specify the image size in both degrees and pixels. Retrieve/save a FITS image in your desired bandpass, then deselect Image-Auto-Reload …

While DS9 continues to be an independent project serving all fields of astronomy (and beyond), the collaboration with the SDS group has led to several exciting updates specifically of interest to the …

DS9 regions CIAO understands most of the simple, atomic regions that DS9 can draw including circle, ellipse, point, box, polygons, and annulus. The regions that are purely for annotations such as text, …

Dec 12, 2025 · CIAO is the software package developed by the Chandra X-Ray Center for analysing data from the Chandra X-ray Telescope. It can also be used with data from other Astronomical …

Jan 13, 2022 · How to display the file SAOImage ds9, the default imager distributed with CIAO, has the capability to display data cubes.