value quality siderealorsynodic author ref method 15.3600 2 Synodic Marciniak LCDB Lightcurve 15.3611 2 Sidereal Durech 2020A&A...643A..59D Model 15.3650 3 Synodic Cooney 2002MPBu...29...48C Lightcurve 7.2000 1 Synodic Behrend LCDB Lightcurve 7.2000 1 Synodic Behrend LCDB Lightcurve