value quality siderealorsynodic author ref method 3.6296 2 Sidereal Durech 2020A&A...643A..59D Model 3.6298 3 Synodic Pravec LCDB Lightcurve 3.6300 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve 3.6400 2 Synodic Chang 2016ApJS..227...20C Lightcurve