value quality siderealorsynodic author ref method 73.9660 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 74.0930 2 Sidereal Durech 2018A&A...617A..57D Model 74.2400 2 Synodic Waszczak 2015AJ....150...75W Lightcurve