value quality siderealorsynodic author ref method 5.0970 0 Synodic Bennefeld 2009MPBu...36..123B Lightcurve 5.5260 0 Synodic Behrend LCDB Lightcurve 5.9869 3 Synodic Pal 2020ApJS..247...26P Lightcurve 5.9920 2 Synodic McNeill 2019ApJS..245...29M Lightcurve