value quality siderealorsynodic author ref method 3.5826 3 Synodic Pravec LCDB Lightcurve 3.5830 3 Synodic Benishek 2015CBET.4326....1B Lightcurve 3.5830 3 Synodic Pravec LCDB Lightcurve 4.5290 1+ Synodic Behrend LCDB Lightcurve