Gaia DR2 auxiliary data

The photometric system of Gaia applicable to Gaia DR2

Find here the Gaia DR2 passbands (with additional info on the Gaia DR2 known issues page as well).

Overview of gaps in Gaia DR2 data

A description and overview of gaps in the data stream that underlies the Gaia data products is given here.

Scanning law

Find here the sampling of the Gaia scanning law for the time period of Gaia DR2 observations.

Auxiliary data on Astrometry: Considerations for the use of DR2 astrometry

Find auxiliary data provided by L. Lindegren along with his presentation "Considerations for the use of DR2 astrometry" here.

Auxiliary data on crossmatches

Find auxiliary data on the Gaia DR2 crossmatch with Hipparcos-2 here.