value quality siderealorsynodic author ref method 11.3551 2 Synodic Pal 2020ApJS..247...26P Lightcurve 11.3570 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 11.3583 2 Sidereal Durech 2020A&A...643A..59D Model