value quality siderealorsynodic author ref method 106.7860 2 Synodic Pal 2020ApJS..247...26P Lightcurve 106.8700 2 Sidereal Durech 2023A&A...675A..24D Model 107.1610 2 Synodic McNeill 2019ApJS..245...29M Lightcurve