value quality siderealorsynodic author ref method 5.6060 3 Synodic Odden 2018MPBu...45..401O Lightcurve 5.6062 2 Sidereal Durech 2023A&A...675A..24D Model 5.6062 2 Sidereal Durech 2020A&A...643A..59D Model