value quality siderealorsynodic author ref method 10.9700 2 Synodic Lagerkvist 2001Icar..149..190L Lightcurve 10.9870 2 Synodic Pal 2020ApJS..247...26P Lightcurve 10.9870 3 Synodic Pilcher 2021MPBu...48..360P Lightcurve 10.9872 2 Sidereal Durech 2020A&A...643A..59D Model 11.0200 3 Synodic Behrend LCDB Lightcurve 11.0400 3 Synodic Zappala 1989Icar...82..354Z Lightcurve