value quality siderealorsynodic author ref method 6.2891 3 Synodic Oey LCDB Lightcurve 6.2893 3 Synodic Behrend LCDB Lightcurve 6.2900 2 Sidereal Durech 2016A&A...587A..48D Model 6.2901 2 Synodic Pal 2020ApJS..247...26P Lightcurve