value quality siderealorsynodic author ref method 69.4540 2 Synodic McNeill 2019ApJS..245...29M Lightcurve 69.5600 2 Sidereal Durech 2023A&A...675A..24D Model 69.7184 2 Synodic Pal 2020ApJS..247...26P Lightcurve