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gaia data release 3 documentation

8.3 Processing steps

8.3.6 Error model for Photometry

Author(s): Laurent Galluccio, Marco Delbó, Alberto Cellino

The uncertainty for the G-band photometric flux of the SSO, referred to as Φerr, was computed using error propagation for the weighted average photometry measured on the corresponding AF CCDs actually used (see Equation 8.14):

Φerr = (iwfi)-1. (8.16)

The information is given in the archive on the table gaiadr3.sso_observation in the field g_flux_error.