value quality siderealorsynodic author ref method 360.0000 2 Synodic Warner 2020MPBu...47..196W Lightcurve 362.0000 2 Synodic Warner 2020MPBu...47..196W Lightcurve 421.1000 2+ Synodic Warner 2017MPBu...44...36W Lightcurve