value quality siderealorsynodic author ref method 3.2950 3- Synodic Kabas 2016Icar..271..279K Lightcurve 3.2972 2 Sidereal Durech 2023A&A...675A..24D Model 3.2978 2+ Synodic Oey 2009MPBu...36..162O Lightcurve