value quality siderealorsynodic author ref method 4.0000 2 Synodic Wisniewski 1997Icar..126..395W Lightcurve 4.6584 3 Synodic Benishek 2010MPBu...37...64B Lightcurve 4.6601 3 Synodic Behrend LCDB Lightcurve