value quality siderealorsynodic author ref method 6.2000 1 Synodic Lagerkvist 1979AcA....29..455L Lightcurve 6.7300 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.7300 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.7340 3- Synodic Behrend LCDB Lightcurve 6.7440 3- Synodic Fornas LCDB Lightcurve