value quality siderealorsynodic author ref method 3.2100 2 Synodic Yeh 2020AJ....160...73Y Lightcurve 7.7440 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 7.7630 2 Synodic Waszczak 2015AJ....150...75W Lightcurve