value quality siderealorsynodic author ref method 11.1159 3- Synodic Brinsfield 2011MPBu...38...73B Lightcurve 11.1557 2 Sidereal Durech 2018A&A...617A..57D Model 12.3000 2 Synodic Behrend LCDB Lightcurve 12.7340 2- Synodic Behrend LCDB Lightcurve