value quality siderealorsynodic author ref method 5.2030 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.2200 2 Synodic Chang 2015ApJS..219...27C Lightcurve 5.5000 2 Synodic Yeh 2020AJ....160...73Y Lightcurve