value quality siderealorsynodic author ref method 6.5424 2 Sidereal Durech 2023A&A...675A..24D Model 6.5424 2 Sidereal Durech 2016A&A...587A..48D Model 6.5430 3 Synodic Klinglesmith 2014MPBu...41..139K Lightcurve 6.5431 3 Synodic Galad 2008MPBu...35...78G Lightcurve