value quality siderealorsynodic author ref method 3.2000 2 Synodic Wisniewski 1997Icar..126..395W Lightcurve 3.3581 2 Sidereal Durech 2009A&A...493..291D Model 3.3581 2 Sidereal Martikainen 2021A&A...649A..98M Model 3.3583 3 Synodic Vokrouhlicky 2009A&A...507..495V Lightcurve 3.3590 3 Synodic Takato 2008ApJ...685L.161T Lightcurve 3.4000 3 Synodic Szekely 2005P&SS...53..925S Lightcurve 3.4800 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve