value quality siderealorsynodic author ref method 16.0000 1 Synodic Hasegawa 2018PASJ...70..114H Lightcurve 25.0000 1+ Synodic Koehn 2014MPBu...41..286K Lightcurve 700.0000 1+ Synodic Skiff 2019MPBu...46..458S Lightcurve