value quality siderealorsynodic author ref method 11.6900 2+ Synodic Behrend LCDB Lightcurve 11.7245 2 Sidereal Durech 2019A&A...631A...2D Model 11.7245 2 Sidereal Durech 2018A&A...620A..91D Model 11.7245 2 Sidereal Durech 2023A&A...675A..24D Model 11.7600 2 Synodic Behrend LCDB Lightcurve 16.2000 2 Synodic Binzel 1987Icar...72..135B Lightcurve 17.6200 2 Synodic Aznar LCDB Lightcurve