value quality siderealorsynodic author ref method 4.5900 3 Synodic Warner 2011MPBu...38...82W Lightcurve 4.5980 3 Synodic Warner 2016MPBu...43...57W Lightcurve 4.6000 3- Synodic Warner 2014MPBu...41..144W Lightcurve