value quality siderealorsynodic author ref method 10.5000 1+ Synodic Tomassini 2015MPBu...42..100T Lightcurve 22.2976 2 Sidereal Durech 2020A&A...643A..59D Model 22.2980 3 Synodic Ditteon 2018MPBu...45..117D Lightcurve