value quality siderealorsynodic author ref method 6.0641 2 Sidereal Durech 2023A&A...675A..24D Model 6.0653 2 Synodic Pal 2020ApJS..247...26P Lightcurve 6.0660 2 Synodic McNeill 2019ApJS..245...29M Lightcurve