value quality siderealorsynodic author ref method 2.9400 2 Synodic Chang 2015ApJS..219...27C Lightcurve 5.8949 2 Sidereal Durech 2020A&A...643A..59D Model 5.8950 2- Synodic Erasmus 2020ApJS..247...13E Lightcurve 5.8960 3- Synodic Ditteon 2010MPBu...37....1D Lightcurve 5.9070 2 Synodic Waszczak 2015AJ....150...75W Lightcurve