value quality siderealorsynodic author ref method 4.8274 3 Synodic Polakis 2019MPBu...46..132P Lightcurve 4.8276 2 Sidereal Durech 2020A&A...643A..59D Model 4.8310 3 Synodic Torno 2008MPBu...35...54T Lightcurve 4.8700 3- Synodic Behrend LCDB Lightcurve