value quality siderealorsynodic author ref method 4.1210 3 Synodic Marchini 2020MPBu...47...69M Lightcurve 4.1216 2 Sidereal Durech 2018A&A...617A..57D Model 4.1216 2 Sidereal Durech 2023A&A...675A..24D Model