value quality siderealorsynodic author ref method 15.8940 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 16.2014 2 Sidereal Martikainen 2021A&A...649A..98M Model 16.2015 2 Sidereal Durech 2023A&A...675A..24D Model 16.2016 2 Sidereal Durech 2018A&A...617A..57D Model 16.2700 2 Synodic Chang 2015ApJS..219...27C Lightcurve