value quality siderealorsynodic author ref method 108.1507 2 Sidereal Martikainen 2021A&A...649A..98M Model 108.1550 2 Sidereal Durech 2020A&A...643A..59D Model 108.5000 2+ Synodic Stephens 2009MPBu...36..125S Lightcurve 24.0000 1 Synodic Behrend LCDB Lightcurve 73.5000 2 Synodic Vander Haagen 2009MPBu...36..136V Lightcurve