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

Nov 1, 2024 · The ds9 catalog tool allows users to annotate their images with markers for sources from many different catalogs (including the Chandra Source Catalog and users own source …

Jan 31, 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 …

Feb 8, 2022 · CIAO Analysis menu in ds9 The net counts can also be obtained directly in ds9 using the CIAO analysis menu in ds9, aka dax. From ds9 select the top-level Analysis menu …

Feb 22, 2022 · The more complicated regions - elliptical and box annuli, the panda shape, and format used for writing grids of annuli - will not work properly. In general, the ds9 region format …

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 …

Feb 17, 2022 · ds9 has a very power catalog tool that allows users to overlay multiple catalogs on an image and to perform various kinds of analysis including cross-matching between multiple …

Dec 10, 2024 · The ds9 smoke test results may differ in the least significant figure. A sample diff log from test ds9-smoke001:

Dec 11, 2024 · ObsVis is a tool to aid in observation planning which allows the inspection of sky images with overlaid instrument fields-of-view (FoV). ObsVis interfaces with the SAOimage …

Finally ds9 is used to view the exposure-corrected image, the name of which includes the energy range, effective energy used and the binning factor. The FOV file, which indicates the extent of …