value quality siderealorsynodic author ref method 11.3200 2 Synodic Stephens 2009MPBu...36...59S Lightcurve 16.8470 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 16.8471 2 Sidereal Durech 2023A&A...675A..24D Model 16.8472 2 Sidereal Durech 2019A&A...631A...2D Model 16.8472 2 Sidereal Durech 2018A&A...617A..57D Model