value quality siderealorsynodic author ref method 12.6344 2 Sidereal Durech 2023A&A...675A..24D Model 12.6344 2 Sidereal Hanus 2013A&A...551A..67H Model 12.6600 2 Synodic LeCrone 2005MPBu...32...46L Lightcurve 12.6700 3- Synodic Polakis 2022MPBu...49..179P Lightcurve