value quality siderealorsynodic author ref method 13.4513 2 Sidereal Durech 2019A&A...631A...2D Model 13.4514 2 Sidereal Durech 2023A&A...675A..24D Model 13.4640 2 Synodic Waszczak 2015AJ....150...75W Lightcurve