value quality siderealorsynodic author ref method 7.0610 3 Synodic Behrend LCDB Lightcurve 7.0887 2 Sidereal Durech 2023A&A...675A..24D Model 7.0901 2 Synodic Pal 2020ApJS..247...26P Lightcurve 8.3230 2 Synodic Warner 2009MPBu...36....7W Lightcurve