value quality siderealorsynodic author ref method 3.8080 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 3.8100 2 Synodic Chang 2015ApJS..219...27C Lightcurve 3.8110 3- Synodic Benishek 2021MPBu...48..117B Lightcurve