value quality siderealorsynodic author ref method 3.9680 3 Synodic Pravec LCDB Lightcurve 3.9681 3 Synodic Pravec LCDB Lightcurve 3.9683 3 Synodic Pravec LCDB Lightcurve 3.9683 3 Synodic Pray 2009CBET.1716....1P Lightcurve