value quality siderealorsynodic author ref method 7.3440 0 Synodic Warner 2003MPBu...30...33W Lightcurve 8.5140 3- Synodic Stephens 2018MPBu...45..168S Lightcurve 8.5210 3 Synodic Behrend LCDB Lightcurve 8.5210 3 Synodic Stephens 2014MPBu...41...92S Lightcurve 8.5221 2 Synodic Behrend LCDB Lightcurve 8.5224 2 Sidereal Durech 2019A&A...631A...2D Model 8.5240 3- Synodic Warner 2008MPBu...35...56W Lightcurve 8.5260 3- Synodic Warner 2011MPBu...38...96W Lightcurve 8.5360 3 Synodic Behrend LCDB Lightcurve