value quality siderealorsynodic author ref method 2.7300 2+ Synodic Stephens 2016MPBu...43..252S Lightcurve 2.7320 3- Synodic Falese 2014MPBu...41....3F Lightcurve 2.7322 2 Synodic Pal 2020ApJS..247...26P Lightcurve 2.8320 3 Synodic Stephens 2019MPBu...46...66S Lightcurve