value quality siderealorsynodic author ref method 76.0800 2 Sidereal Durech 2023A&A...675A..24D Model 76.3648 2 Synodic Pal 2020ApJS..247...26P Lightcurve 76.4260 2 Synodic Waszczak 2015AJ....150...75W Lightcurve