value quality siderealorsynodic author ref method 2.8916 2 Synodic Behrend LCDB Lightcurve 2.8958 Synodic Higgins 2006CBET..681....1H Lightcurve 2.8958 3 Synodic Pravec 2012Icar..218..125P Lightcurve 2.8958 3 Synodic Higgins 2011MPBu...38...46H Lightcurve 2.8960 3 Synodic Pravec 2012Icar..218..125P Lightcurve 2.8960 3 Synodic Pravec LCDB Lightcurve 2.8990 2+ Synodic Aznar 2017MPBu...44..139A Lightcurve