value quality siderealorsynodic author ref method 4.7340 3 Synodic Behrend LCDB Lightcurve 4.7341 3 Synodic Michalik 2016MPBu...43..202M Lightcurve 4.7346 2 Sidereal Durech 2020A&A...643A..59D Model 4.7354 3 Synodic Pravec LCDB Lightcurve