value quality siderealorsynodic author ref method 15.4500 3 Synodic Ruthroff 2010MPBu...37...32R Lightcurve 15.4610 3- Synodic Pilcher 2017MPBu...44..316P Lightcurve 15.4700 3- Synodic Franco 2023MPBu...50..173F Lightcurve 15.4800 3 Synodic Harris 1983Icar...54...59H Lightcurve 30.8279 2 Synodic Behrend LCDB Lightcurve 30.9300 2 Synodic Pal 2020ApJS..247...26P Lightcurve 8.0000 Synodic Behrend LCDB Lightcurve