value quality siderealorsynodic author ref method 4.9890 3 Synodic Higgins LCDB Lightcurve 4.9971 3 Synodic Pravec LCDB Lightcurve 4.9984 3 Synodic Pravec LCDB Lightcurve 4.9987 2 Synodic Pal 2020ApJS..247...26P Lightcurve 4.9991 3 Synodic Pravec LCDB Lightcurve