value quality siderealorsynodic author ref method 11.1098 2 Synodic Behrend LCDB Lightcurve 11.5000 2 Synodic Chang 2014ApJ...788...17C Lightcurve 11.5678 2 Sidereal Durech 2020A&A...643A..59D Model 11.5810 2 Synodic Waszczak 2015AJ....150...75W Lightcurve