value quality siderealorsynodic author ref method 8.5450 3 Synodic Harris 1989Icar...81..314H Lightcurve 8.5590 3 Synodic Behrend LCDB Lightcurve 8.5599 2 Synodic Pal 2020ApJS..247...26P Lightcurve 8.5600 1 Synodic Behrend LCDB Lightcurve 8.5650 3 Synodic Polakis 2021MPBu...48..144P Lightcurve