value quality siderealorsynodic author ref method 9.4400 3- Synodic Behrend LCDB Lightcurve 9.4527 2 Sidereal Durech 2019A&A...631A...2D Model 9.4530 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve 9.4700 3 Synodic Florczak 1997P&SS...45.1423F Lightcurve