value quality siderealorsynodic author ref method 3.7690 3- Synodic Skiff LCDB Lightcurve 3.7710 3- Synodic Skiff 2023MPBu...50...74S Lightcurve 3.7740 2 Synodic Benishek 2022MPBu...49...38B Lightcurve 7.5360 2 Synodic Koff 2005MPBu...32...32K Lightcurve