value quality siderealorsynodic author ref method 3.6700 3 Synodic Binzel 1987Icar...72..135B Lightcurve 3.6734 2 Sidereal Durech 2023A&A...675A..24D Model 3.7936 2 Sidereal Durech 2019A&A...631A...2D Model 7.3464 2 Synodic Pal 2020ApJS..247...26P Lightcurve