value quality siderealorsynodic author ref method 15.0000 Synodic Harris 1992Icar...95..115H Lightcurve 15.7890 2 Synodic Johnson 2008MPBu...35..151J Lightcurve 15.7890 2 Synodic Shevchenko 1997P&SS...45.1615S Lightcurve 15.7900 2- Synodic Behrend LCDB Lightcurve 15.8530 2 Synodic Riccioli 2001P&SS...49..657R Lightcurve 23.6130 3 Synodic Pilcher 2008MPBu...35...71P Lightcurve 23.6180 3 Synodic Pilcher LCDB Lightcurve 23.6250 3 Synodic Pilcher 2013MPBu...40..158P Lightcurve 23.6300 2+ Synodic Franco 2021MPBu...48..120F Lightcurve