value quality siderealorsynodic author ref method 13.1918 2 Sidereal Hanus 2018Icar..309..297H Model 13.1918 2 Sidereal Durech 2023A&A...675A..24D Model 13.1950 2 Synodic Behrend LCDB Lightcurve 13.2000 2- Synodic Behrend LCDB Lightcurve 13.2040 2 Synodic Higgins 2005MPBu...32...13H Lightcurve