value quality siderealorsynodic author ref method 10.4000 1 Synodic Szekely 2005P&SS...53..925S Lightcurve 10.7543 2 Sidereal Durech 2019A&A...631A...2D Model 10.7556 3 Synodic Behrend LCDB Lightcurve 10.7700 3 Synodic Warner 2010MPBu...37...57W Lightcurve