value quality siderealorsynodic author ref method 8.0900 3 Synodic Polakis 2019MPBu...46..287P Lightcurve 8.1010 2 Synodic Olguin 2020MPBu...47..340O Lightcurve 8.1048 3 Synodic Pravec LCDB Lightcurve 8.1060 3 Synodic Behrend LCDB Lightcurve