value quality siderealorsynodic author ref method 10.1950 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 10.1953 2 Sidereal Durech 2023A&A...675A..24D Model 10.2010 2 Synodic Waszczak 2015AJ....150...75W Lightcurve