value quality siderealorsynodic author ref method 13.4670 3 Synodic Mottola 2011AJ....141..170M Lightcurve 13.4750 2+ Synodic Szabo 2017A&A...599A..44S Lightcurve 13.4900 2+ Synodic Ryan 2017AJ....153..116R Lightcurve 13.5200 2 Synodic Mottola 2011AJ....141..170M Lightcurve