value quality siderealorsynodic author ref method 17.9180 2 Synodic Waszczak 2015AJ....150...75W Lightcurve 17.9380 3 Synodic Pilcher 2010MPBu...37..148P Lightcurve 17.9407 2 Sidereal Durech 2016A&A...587A..48D Model 17.9409 2 Sidereal Martikainen 2021A&A...649A..98M Model 17.9410 2 Sidereal Hanus 2016A&A...586A.108H Model 17.9411 2 Sidereal Durech 2023A&A...675A..24D Model 17.9570 2 Synodic Behrend LCDB Lightcurve 17.9600 2- Synodic Behrend LCDB Lightcurve