value quality siderealorsynodic author ref method 72.0000 2- Synodic Behrend LCDB Lightcurve 75.0280 2+ Synodic Ferrero 2020MPBu...47..352F Lightcurve 75.1000 2+ Synodic Benishek 2021MPBu...48...77B Lightcurve