value quality siderealorsynodic author ref method 5.2490 3- Synodic Warner 2015MPBu...42..167W Lightcurve 5.2500 3 Synodic Stephens 2017MPBu...44...49S Lightcurve 5.2550 3- Synodic Warner 2012MPBu...39..158W Lightcurve 5.2730 2 Synodic Warner 2007MPBu...34...72W Lightcurve