value quality siderealorsynodic author ref method 5.3470 2 Synodic McNeill 2019ApJS..245...29M Lightcurve 5.3502 2 Sidereal Durech 2020A&A...643A..59D Model 5.3505 2 Synodic Pal 2020ApJS..247...26P Lightcurve 5.5400 2+ Synodic Clark 2015MPBu...42...15C Lightcurve