value quality siderealorsynodic author ref method 7.0600 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 7.0607 2 Sidereal Durech 2020A&A...643A..59D Model 7.0613 3 Synodic Behrend LCDB Lightcurve 7.0620 3 Synodic Behrend LCDB Lightcurve