Distributions of the numbers of transits (rv_nb_transits, top), grvs_mag magnitudes (middle), and S/N (rv_expected_sig_to_noise, bottom) of the stars whose combined radial velocity is published in Gaia DR3. In the left column, the distributions are presented in the form of histograms. The right column presents the sky maps of the median values of these three quantities. The maps use Mollweide projections in Galactic coordinates (l, b). The Galactic centre is at the centre of the images, and the Galactic longitudes increase to the left. The sampling of the maps is approximately 0.2 square degree (healpix level 7).