value quality siderealorsynodic author ref method 15.9970 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 4.8167 3 Synodic Stephens 2023MPBu...50...58S Lightcurve 4.8195 2 Synodic Pal 2020ApJS..247...26P Lightcurve