value quality siderealorsynodic author ref method 38.0000 2 Synodic Pravec LCDB Lightcurve 53.2600 2 Synodic Behrend LCDB Lightcurve 58.0000 2 Synodic Warner 2019MPBu...46...27W Lightcurve 97.2000 2 Synodic Gorshanov 2020SoSyR..54...34G Lightcurve