value quality siderealorsynodic author ref method 10.0330 2+ Synodic Behrend LCDB Lightcurve 10.4247 2 Sidereal Durech 2009A&A...493..291D Model 10.4247 2 Sidereal Hanus 2011A&A...530A.134H Model 10.4260 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve 10.4380 3 Synodic Barucci 1994Icar..109..267B Lightcurve