value quality siderealorsynodic author ref method 2.7560 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 2.9260 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 47.5224 2 Synodic Pal 2020ApJS..247...26P Lightcurve