value quality siderealorsynodic author ref method 9.3510 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 9.3651 2 Sidereal Durech 2023A&A...675A..24D Model 9.4100 2 Synodic Chang 2015ApJS..219...27C Lightcurve