value quality siderealorsynodic author ref method 4.2420 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 4.2420 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 4.2450 2 Synodic Waszczak 2015AJ....150...75W Lightcurve