value quality siderealorsynodic author ref method 11.6060 2 Synodic Behrend LCDB Lightcurve 11.6162 3 Synodic Stephens 2008DPS....40.2816S Lightcurve 11.6164 2 Sidereal Durech 2020A&A...643A..59D Model 11.6400 2 Synodic Zeigler 1988MPBu...15...15Z Lightcurve