value quality siderealorsynodic author ref method 4.2250 3 Synodic Brinsfield 2008MPBu...35..119B Lightcurve 4.2253 2 Sidereal Durech 2018A&A...617A..57D Model 4.2255 2 Synodic Pal 2020ApJS..247...26P Lightcurve 4.2260 3 Synodic Stephens 2008MPBu...35..126S Lightcurve 4.2261 3 Synodic Pravec LCDB Lightcurve 4.2270 3 Synodic Warner 2015MPBu...42...54W Lightcurve