Visualizing data in CIAO
CIAO provides several means of visualizing your data, including
- SAOImage DS9
CIAO 4.13 comes with version 8.2 of SAOImage DS9, which can be used to visualize images, event files, and even tabular data.
Recent changes have greatly improved the capabilities of the dax analysis menu, which lets you run a number of CIAO tasks from the DS9 analysis menu. These include tasks such as spectral extraction and then analysis (fitting a simple spectral model), or point-source photometry. For more information, see the dax presentation at the X-Ray Astronomy 19 CIAO workshop and our YouTube channel.
CIAO includes the Python Matplotlib plotting package for plotting and imaging.
Prior to CIAO 4.12, CIAO included the ChIPS (Chandra Imaging and Plotting System) for data visualization. Please see the ChIPS to Matplotlib conversion guide for information on how to convert any code, notes, or muscle memory you have. The CXC Helpdesk can also be consulted for guidance.
The prism tool is CIAO's table and image viewer and editor. It lets you look at the structure of a file - the various blocks of data, the columns or pixel values in each block, and the metadata about each block - as well as change these values or visualize them via Matplotlib or DS9. Please see the Introduction to Prism thread for more information.