value quality siderealorsynodic author ref method 7.3600 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 7.3800 3- Synodic Chang 2016ApJS..227...20C Lightcurve 95.5916 2 Synodic Pal 2020ApJS..247...26P Lightcurve