value quality siderealorsynodic author ref method 7.5200 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 7.5202 3 Synodic Oey 2013MPBu...40..169O Lightcurve 7.5209 3 Synodic Pravec LCDB Lightcurve 7.5210 3- Synodic Pravec LCDB Lightcurve 7.5890 3- Synodic Oey 2014MPBu...41..276O Lightcurve