Gaia Data Release 3: Catalogue Validation

Understand

The third gaia data release (DR3) provides a wealth of new data products.

• The early part of the release, Gaia EDR3, already provided the astrometric and photometric data for nearly two billion sources.
• The full release now adds improved parameters compared to Gaia DR2 for radial velocities, astrophysical parameters, variability information, light curves, and orbits for Solar System objects.
• The improvements are in terms of the number of sources, the variety of parameter information, precision, and accuracy.