value quality siderealorsynodic author ref method 9.0046 2- Synodic Harris 1999Icar..142..173H Lightcurve 9.0120 Synodic Binzel 1987Icar...72..135B Lightcurve 9.0120 2 Synodic Harris 1985BAAS...17R.726H Lightcurve