value quality siderealorsynodic author ref method 5.6120 3 Synodic Casalnuovo 2020MPBu...47..186C Lightcurve 5.6140 2 Sidereal Durech 2020A&A...643A..59D Model 5.6140 2 Sidereal Durech 2018A&A...617A..57D Model 5.6143 3 Synodic Behrend LCDB Lightcurve