value quality siderealorsynodic author ref method 4.1637 3 Synodic Behrend LCDB Lightcurve 4.1640 3 Synodic Higgins LCDB Lightcurve 4.1656 2 Sidereal Durech 2020A&A...643A..59D Model 4.1669 3 Synodic Behrend LCDB Lightcurve