value quality siderealorsynodic author ref method 4.2100 2 Synodic Chang 2015ApJS..219...27C Lightcurve 4.2140 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 4.2161 2 Sidereal Durech 2023A&A...675A..24D Model