value quality siderealorsynodic author ref method 3.5190 3 Synodic Behrend LCDB Lightcurve 3.5250 3 Synodic Aznar 2017MPBu...44..139A Lightcurve 3.5251 2 Sidereal Durech 2020A&A...643A..59D Model 3.5258 3 Synodic Pravec LCDB Lightcurve 3.8050 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve