Comparison between the best period derived from Gaia photometry with convex models (left panel) and ellipsoids (right panel). Each point represents an asteroid for which the best-fitting period from Gaia was determined and with a period in the LCDB with the uncertainty code U ≥ 3. The number of Gaia observations N is expressed by the colour. The left panel contains fewer points because convex models were used only when N > 20.