value quality siderealorsynodic author ref method 14.0000 1 Synodic Pravec LCDB Lightcurve 5.1010 2- Synodic Skiff 2019MPBu...46..238S Lightcurve 5.1310 2- Synodic Pravec LCDB Lightcurve 5.1660 1+ Synodic Pravec LCDB Lightcurve