value quality siderealorsynodic author ref method 10.6300 3 Synodic Binzel 1987Icar...72..135B Lightcurve 10.6496 2 Sidereal Durech 2023A&A...675A..24D Model 10.6498 2 Sidereal Durech 2009A&A...493..291D Model 10.6498 2 Sidereal Durech LCDB Model 10.6498 2 Sidereal Martikainen 2021A&A...649A..98M Model 10.6498 2 Sidereal Hanus 2011A&A...530A.134H Model 11.9800 2 Synodic Behrend LCDB Lightcurve 11.9820 2+ Synodic Behrend LCDB Lightcurve