value quality siderealorsynodic author ref method 5.0130 2 Synodic Carbo 2009MPBu...36...91C Lightcurve 6.3335 3 Synodic Behrend LCDB Lightcurve 6.3346 2 Synodic Behrend LCDB Lightcurve 6.3347 2 Sidereal Durech 2019A&A...631A...2D Model