value quality siderealorsynodic author ref method 5.7500 3 Synodic Polakis 2018MPBu...45..347P Lightcurve 5.7519 2 Sidereal Durech 2016A&A...587A..48D Model 5.7519 2 Sidereal Hanus 2016A&A...586A.108H Model 5.7530 2+ Synodic Brinsfield 2008MPBu...35..179B Lightcurve 7.0000 2 Synodic Lagerkvist 1978A&AS...31..361L Lightcurve