value quality siderealorsynodic author ref method 45.6490 1 Synodic Waszczak 2015AJ....150...75W Lightcurve 48.5230 2- Synodic Warner 2020MPBu...47..196W Lightcurve 9.0500 2- Synodic Binzel 1992Icar...95..222B Lightcurve