value quality siderealorsynodic author ref method 3.8586 2 Sidereal Durech 2023A&A...675A..24D Model 3.8590 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 4.1800 2+ Synodic Polishook 2009MPBu...36..104P Lightcurve