value quality siderealorsynodic author ref method 4.7492 2 Sidereal Durech 2018A&A...617A..57D Model 4.7492 2 Sidereal Durech 2020A&A...643A..59D Model 4.7496 3 Synodic Dykhuis 2016Icar..267..174D Lightcurve 4.7497 3 Synodic Dykhuis 2016Icar..267..174D Lightcurve