value quality siderealorsynodic author ref method 12.8266 2 Sidereal Durech 2023A&A...675A..24D Model 12.8270 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 12.8290 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 12.8300 2 Synodic Yeh 2020AJ....160...73Y Lightcurve