value quality siderealorsynodic author ref method 3.6000 3 Synodic Binzel 1987Icar...72..135B Lightcurve 3.6240 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 3.6240 2 Synodic Slivan 2009Icar..200..514S Lightcurve 3.6240 3 Synodic Ditteon 2002MPBu...29...55D Lightcurve 3.6242 2 Sidereal Durech 2019A&A...631A...2D Model