value quality siderealorsynodic author ref method 3.9000 2 Synodic Alvarez 2004Icar..172..388A Lightcurve 4.7420 2 Sidereal Durech 2018A&A...617A..57D Model 4.7420 2 Sidereal Durech 2020A&A...643A..59D Model 4.7420 3 Synodic King 2010MPBu...37...34K Lightcurve