value quality siderealorsynodic author ref method 3.2150 3- Synodic Groezinger 2020MPBu...47..174G Lightcurve 3.2165 2 Sidereal Durech 2020A&A...643A..59D Model 3.2280 3 Synodic Garceran 2015MPBu...42..235G Lightcurve 3.2551 3 Synodic Benishek 2016MPBu...43...89B Lightcurve