Source catalog

The source catalog is available as a single table in a single file. It contains only part of the data available in gamma-cat.

• gammacat.fits.gz – Main version of the source catalog (in FITS format)
• gammacat.ecsv – Partial source catalog (in ECSV format)
• gammacat.yaml – Partial source catalog (in YAML format)

Why multiple formats?

• FITS is the main format for the catalog we release. It supports vector columns, which we use for spectral points.
• The ECSV and YAML variant are more for us working on gamma-cat, to have a text-based, version control friendly format where it’s easy to see which changes occurred from one version to the next.