value quality siderealorsynodic author ref method 2.8300 2+ Synodic Behrend LCDB Lightcurve 2.8350 2+ Synodic Skiff LCDB Lightcurve 2.8640 2+ Synodic Fauerbach 2019MPBu...46...19F Lightcurve 2.8737 2 Synodic Wilkin 2022MPBu...49...76W Lightcurve 2.8738 2- Synodic Wilkin LCDB Lightcurve 3.0590 2 Synodic Waszczak 2015AJ....150...75W Lightcurve