value quality siderealorsynodic author ref method 2.6710 3 Synodic Warner 2012MPBu...39...16W Lightcurve 2.6717 3 Synodic Warner 2010MPBu...37...57W Lightcurve 2.6731 3 Synodic Warner 2015MPBu...42..132W Lightcurve 2.6750 3 Synodic Warner 2017MPBu...44...12W Lightcurve 2.6760 3- Synodic Warner 2007MPBu...34....8W Lightcurve