value quality siderealorsynodic author ref method 3.6560 3 Synodic Stephens 2014MPBu...41....8S Lightcurve 3.6580 3 Synodic Warner 2010MPBu...37..109W Lightcurve 3.6590 3 Synodic Warner 2012MPBu...39...16W Lightcurve