value quality siderealorsynodic author ref method 3.9600 2 Synodic Menke 2005MPBu...32...64M Lightcurve 4.3000 2 Synodic Kryszczynska 2012A&A...546A..72K Lightcurve 46.7700 2 Synodic Polakis 2020MPBu...47..314P Lightcurve