value quality siderealorsynodic author ref method 4.6700 2+ Synodic Polishook 2012MNRAS.421.2094P Lightcurve 4.6820 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 5.1900 2 Synodic Waszczak 2015AJ....150...75W Lightcurve