value quality siderealorsynodic author ref method 24.0000 1 Synodic Behrend LCDB Lightcurve 28.4900 2 Synodic Pray 2005MPBu...32...48P Lightcurve 28.8000 2 Synodic Binzel 1987Icar...72..135B Lightcurve 29.1730 2 Synodic Polakis 2020MPBu...47...94P Lightcurve