value quality siderealorsynodic author ref method 2.8985 3 Synodic Warner 2022MPBu...49...22W Lightcurve 5.7890 2 Synodic Warner 2009MPBu...36....7W Lightcurve 5.8000 2 Synodic Skiff 2019MPBu...46..238S Lightcurve