value quality siderealorsynodic author ref method 28.4630 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 28.4743 2 Synodic Pal 2020ApJS..247...26P Lightcurve 28.4830 2 Synodic Waszczak 2015AJ....150...75W Lightcurve