value quality siderealorsynodic author ref method 3.4861 3 Synodic Warner 2011MPBu...38..103W Lightcurve 3.4870 3 Synodic Warner 2014MPBu...41..102W Lightcurve 3.4870 3 Synodic Warner 2016MPBu...43...57W Lightcurve 3.4900 2+ Synodic Warner 2014MPBu...41..144W Lightcurve