value quality siderealorsynodic author ref method 3.8700 2 Synodic Chang 2016ApJS..227...20C Lightcurve 3.8750 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 3.8780 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 3.8820 2 Synodic Waszczak 2015AJ....150...75W Lightcurve