value quality siderealorsynodic author ref method 7.7280 2+ Synodic Hawkins 2008MPBu...35....1H Lightcurve 7.7310 2 Synodic McNeill 2019ApJS..245...29M Lightcurve 7.7320 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 7.7320 3- Synodic Folberth 2012MPBu...39...51F Lightcurve 7.7343 2 Synodic Pal 2020ApJS..247...26P Lightcurve