value quality siderealorsynodic author ref method 3.7823 3 Synodic Pravec LCDB Lightcurve 3.7823 3 Synodic Pravec LCDB Lightcurve 3.7823 3 Synodic Pravec LCDB Lightcurve 3.7840 3 Synodic Benishek 2017MPBu...44..151B Lightcurve 3.7840 3 Synodic Pravec LCDB Lightcurve