value quality siderealorsynodic author ref method 13.1638 2 Sidereal Durech 2023A&A...675A..24D Model 13.1648 2 Sidereal Durech 2018A&A...617A..57D Model 13.1648 2 Sidereal Durech 2019A&A...631A...2D Model 17.1000 2 Synodic Gross 2003MPBu...30...44G Lightcurve 26.4900 2+ Synodic Polakis 2021MPBu...48..394P Lightcurve