value quality siderealorsynodic author ref method 5.3880 3 Synodic Casalnuovo 2013MPBu...40..122C Lightcurve 5.3885 2 Sidereal Durech 2023A&A...675A..24D Model 5.3887 2 Sidereal Durech 2019A&A...631A...2D Model 5.3887 2 Sidereal Durech 2018A&A...620A..91D Model