value quality siderealorsynodic author ref method 15.1960 2 Synodic Pal 2020ApJS..247...26P Lightcurve 1561.0000 2 Synodic Rowe 2018MPBu...45..203R Lightcurve 231.2000 2 Sidereal Durech 2023A&A...675A..24D Model