value quality siderealorsynodic author ref method 8.9635 3- Synodic Behrend LCDB Lightcurve 8.9666 2 Sidereal Durech 2023A&A...675A..24D Model 8.9667 2 Sidereal Durech 2018A&A...620A..91D Model 8.9668 2 Sidereal Durech 2020A&A...643A..59D Model 8.9669 2+ Synodic Oey 2006MPBu...33...96O Lightcurve 8.9700 3 Synodic Aznar LCDB Lightcurve