value quality siderealorsynodic author ref method 5.8970 3 Synodic Warner 2010MPBu...37..112W Lightcurve 5.9000 3 Synodic Brinsfield 2010MPBu...37...50B Lightcurve 5.9070 2 Synodic Waszczak 2015AJ....150...75W Lightcurve