value quality siderealorsynodic author ref method 12.0000 1+ Synodic Behrend LCDB Lightcurve 12.0000 1+ Synodic Behrend LCDB Lightcurve 34.9860 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 35.3750 3 Synodic Pilcher 2016MPBu...43..135P Lightcurve 35.3800 2 Sidereal Durech 2020A&A...643A..59D Model