value quality siderealorsynodic author ref method 28.8070 2 Synodic McNeill 2019ApJS..245...29M Lightcurve 28.8612 2 Synodic Pal 2020ApJS..247...26P Lightcurve 28.9000 3 Synodic Ditteon 2019MPBu...46..280D Lightcurve