value quality siderealorsynodic author ref method 5.1053 3 Synodic Ditteon 2018MPBu...45..338D Lightcurve 5.1063 2 Sidereal Durech 2018A&A...617A..57D Model 5.1063 2 Sidereal Durech 2023A&A...675A..24D Model