value quality siderealorsynodic author ref method 10.8800 1 Synodic Barucci 1994Icar..109..267B Lightcurve 5.4312 3- Synodic Polakis 2018MPBu...45..199P Lightcurve 5.4314 2 Sidereal Durech 2018A&A...617A..57D Model 5.4314 2 Sidereal Martikainen 2021A&A...649A..98M Model