value quality siderealorsynodic author ref method 14.7930 2 Synodic McNeill 2019ApJS..245...29M Lightcurve 14.8071 2 Synodic Pal 2020ApJS..247...26P Lightcurve 14.8089 2 Sidereal Durech 2023A&A...675A..24D Model