value quality siderealorsynodic author ref method 6.6300 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.6310 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 6.6330 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 7.2200 2 Synodic Behrend LCDB Lightcurve