value quality siderealorsynodic author ref method 17.2660 3 Synodic Pilcher 2021MPBu...48..132P Lightcurve 17.2678 2 Sidereal Durech 2020A&A...643A..59D Model 17.2680 3 Synodic Pilcher 2009MPBu...36..133P Lightcurve 17.2700 3- Synodic Pilcher 2008MPBu...35..135P Lightcurve 8.6290 2 Synodic Behrend LCDB Lightcurve 8.6290 2 Synodic CALL LCDB Lightcurve 8.6430 2 Synodic Behrend LCDB Lightcurve 9.0000 2 Synodic Harris 1980Icar...43...20H Lightcurve