value quality siderealorsynodic author ref method 2.9270 2 Synodic Polakis 2020MPBu...47..177P Lightcurve 2.9272 3 Synodic Pravec LCDB Lightcurve 2.9272 3 Synodic Stephens 2020MPBu...47..224S Lightcurve 2.9274 3 Synodic Pravec LCDB Lightcurve 2.9275 2 Sidereal Durech 2020A&A...643A..59D Model 2.9275 3 Synodic Pravec LCDB Lightcurve 2.9275 3 Synodic Pravec LCDB Lightcurve 2.9276 3 Synodic Behrend LCDB Lightcurve 2.9280 3 Synodic Bonamico 2020MPBu...47..222B Lightcurve