value quality siderealorsynodic author ref method 16.2840 2 Synodic Ferrero 2020MPBu...47..147F Lightcurve 16.5140 2 Sidereal Durech 2018A&A...620A..91D Model 16.5146 2 Sidereal Durech 2019A&A...631A...2D Model 16.5150 2 Sidereal Durech 2023A&A...675A..24D Model