value quality siderealorsynodic author ref method 2.9739 2 Sidereal Durech 2023A&A...675A..24D Model 3.1020 2+ Synodic Moravec 2013MPBu...40...17M Lightcurve 3.1710 2 Synodic Waszczak 2015AJ....150...75W Lightcurve