value quality siderealorsynodic author ref method 5.4500 2 Synodic Yeh 2020AJ....160...73Y Lightcurve 5.4650 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.4680 2 Synodic Waszczak 2015AJ....150...75W Lightcurve