value quality siderealorsynodic author ref method 15.2400 1 Synodic Behrend LCDB Lightcurve 6.3050 2 Synodic Stephens 2022MPBu...49..205S Lightcurve 6.3080 3 Synodic Stephens 2022MPBu...49..205S Lightcurve 6.9000 2 Synodic Warner 2017MPBu...44...12W Lightcurve