value quality siderealorsynodic author ref method 12.7130 2 Synodic Klinglesmith 2018MPBu...45..162K Lightcurve 17.8888 2 Synodic Pal 2020ApJS..247...26P Lightcurve 28.6000 2- Synodic Rowe 2018MPBu...45..203R Lightcurve 9.0000 2- Synodic Behrend LCDB Lightcurve 9.7500 3 Synodic Gorby 2018MPBu...45..319G Lightcurve