value quality siderealorsynodic author ref method 11.7928 3- Synodic Schmidt 2015MPBu...42....1S Lightcurve 11.7942 2 Sidereal Martikainen 2021A&A...649A..98M Model 11.8010 3 Synodic Warner 2008MPBu...35..171W Lightcurve 11.8060 2 Synodic Hainaut Rouelle 1995A&AS..112..125H Lightcurve 15.8900 2 Synodic Warner 2007MPBu...34...32W Lightcurve 46.3200 2- Synodic Behrend LCDB Lightcurve 8.5000 1 Synodic Piironen 1998A&AS..128..525P Lightcurve