value quality siderealorsynodic author ref method 25.2454 2 Synodic Pal 2020ApJS..247...26P Lightcurve 432.3376 2 Sidereal Martikainen 2021A&A...649A..98M Model 432.3400 2 Sidereal Durech 2019A&A...631A...2D Model