value quality siderealorsynodic author ref method 25.2640 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 25.2750 2 Sidereal Durech 2018A&A...620A..91D Model 25.2750 2 Sidereal Durech 2023A&A...675A..24D Model 25.2752 2 Sidereal Durech 2019A&A...631A...2D Model