value quality siderealorsynodic author ref method 17.3558 1+ Synodic Behrend LCDB Lightcurve 8.6765 2 Sidereal Durech 2020A&A...643A..59D Model 8.6810 3- Synodic Dose 2023MPBu...50..151D Lightcurve 8.8500 2+ Synodic Kryszczynska 2012A&A...546A..72K Lightcurve 9.5720 2 Synodic Colazo 2023MPBu...50..147C Lightcurve