value quality siderealorsynodic author ref method 13.9100 2+ Synodic Benishek 2009MPBu...36...35B Lightcurve 25.5500 1 Synodic Behrend LCDB Lightcurve 25.5500 2 Synodic Behrend LCDB Lightcurve 29.3680 3 Synodic Alkema 2014MPBu...41...40A Lightcurve