value quality siderealorsynodic author ref method 16.7070 2 Synodic McNeill 2019ApJS..245...29M Lightcurve 16.7129 2 Sidereal Durech 2023A&A...675A..24D Model 16.7154 2 Synodic Pal 2020ApJS..247...26P Lightcurve