value quality siderealorsynodic author ref method 5.4410 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.4437 2 Sidereal Durech 2023A&A...675A..24D Model 5.4444 2 Sidereal Durech 2019A&A...631A...2D Model