value quality siderealorsynodic author ref method 12.3870 2+ Synodic Behrend LCDB Lightcurve 12.4111 2 Sidereal Durech 2020A&A...643A..59D Model 12.4114 2 Sidereal Durech 2023A&A...675A..24D Model 12.4160 3 Synodic Oey 2016MPBu...43...45O Lightcurve 12.4160 3 Synodic Pravec LCDB Lightcurve