value quality siderealorsynodic author ref method 3.7817 2 Sidereal Hanus 2016A&A...586A.108H Model 4.1090 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 4.4900 2 Synodic Waszczak 2015AJ....150...75W Lightcurve