value quality siderealorsynodic author ref method 4.7610 2- Synodic McNeill 2019ApJS..245...29M Lightcurve 4.7652 2 Sidereal Durech 2023A&A...675A..24D Model 4.7656 2 Synodic Pal 2020ApJS..247...26P Lightcurve