value quality siderealorsynodic author ref method 5.1539 2 Sidereal Durech 2020A&A...643A..59D Model 5.1539 2 Sidereal Durech 2023A&A...675A..24D Model 5.1547 3 Synodic Molnar 2008MPBu...35....9M Lightcurve