value quality siderealorsynodic author ref method 9.2100 2 Synodic Burtz 1998MPBu...25...25B Lightcurve 9.2134 2+ Synodic Hess 2017MPBu...44....3H Lightcurve 9.2135 3 Synodic Behrend LCDB Lightcurve 9.2136 2 Sidereal Durech 2020A&A...643A..59D Model 9.2160 2 Synodic Behrend LCDB Lightcurve