value quality siderealorsynodic author ref method 10.5400 1 Synodic Behrend LCDB Lightcurve 10.5400 1 Synodic Behrend LCDB Lightcurve 10.5410 3 Synodic Behrend LCDB Lightcurve 10.5440 3- Synodic Brinsfield 2009MPBu...36...64B Lightcurve