value quality siderealorsynodic author ref method 3.8640 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 3.8643 2 Synodic Pal 2020ApJS..247...26P Lightcurve 3.8650 2 Synodic Waszczak 2015AJ....150...75W Lightcurve