value quality siderealorsynodic author ref method 6.0640 2 Synodic Aznar 2019MPBu...46..395A Lightcurve 6.0640 3- Synodic Klinglesmith 2013MPBu...40...16K Lightcurve 8.0660 2 Synodic Behrend LCDB Lightcurve