value quality siderealorsynodic author ref method 37.6200 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 37.6660 2 Sidereal Durech 2023A&A...675A..24D Model 37.7246 2 Synodic Pal 2020ApJS..247...26P Lightcurve