value quality siderealorsynodic author ref method 395.4700 2 Sidereal Durech 2020A&A...643A..59D Model 54.4440 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 54.4930 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve