value quality siderealorsynodic author ref method 7.3500 3- Synodic Dymock 2009JBAA..119..347D Lightcurve 7.3580 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve 7.3585 2 Sidereal Hanus 2016A&A...586A.108H Model 7.3600 3 Synodic Pravec LCDB Lightcurve