value quality siderealorsynodic author ref method 7.9550 3- Synodic Stephens 2014MPBu...41..171S Lightcurve 7.9580 2 Synodic Addleman 2005MPBu...32...76A Lightcurve 7.9588 2 Sidereal Hanus 2018Icar..309..297H Model 7.9588 2 Sidereal Martikainen 2021A&A...649A..98M Model 7.9588 2 Sidereal Hanus 2016A&A...586A.108H Model 7.9597 3 Synodic Pilcher 2009MPBu...36...52P Lightcurve 7.9600 3 Synodic Owings 2009MPBu...36...51O Lightcurve 8.8000 2 Synodic Behrend LCDB Lightcurve