value quality siderealorsynodic author ref method 3.1620 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 3.1660 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 3.1692 3 Synodic Pravec LCDB Lightcurve 3.1692 3 Synodic Benishek 2023MPBu...50..142B Lightcurve