value quality siderealorsynodic author ref method 10.6300 2 Synodic Warner 2000MPBu...27...20W Lightcurve 13.6600 1 Synodic Behrend LCDB Lightcurve 13.6700 3 Synodic Behrend LCDB Lightcurve 13.6800 2+ Synodic Warner 2010MPBu...37..127W Lightcurve 13.6810 3- Synodic Stephens 2021MPBu...48...56S Lightcurve 13.6815 2 Sidereal Martikainen 2021A&A...649A..98M Model 13.6819 2 Sidereal Durech 2023A&A...675A..24D Model