value quality siderealorsynodic author ref method 12.5313 2 Sidereal Durech 2023A&A...675A..24D Model 12.5314 2 Sidereal Durech 2019A&A...631A...2D Model 25.0690 2+ Synodic Benishek 2022MPBu...49....7B Lightcurve