Titan’s North–South Haze Asymmetry Ratio and Boundary at Visible Wavelengths over the Cassini Mission

Abstract We document the evolution of north–south asymmetry (NSA) Titan’s haze albedo during Cassini mission between 2004 and 2017. analyze coadded cube images taken at 96 distinct wavelengths 0.35 1.05 μ m by Visual Infrared Mapping Spectrometer (VIMS-V) instrument from 14 Titan flybys. Over half a year, we observe near-complete transition in NSA boundary latitude across geographic equator southern to northern hemisphere, including 3 yr fading for several years after equinox. The matches previous observations reversal Hubble Space Telescope before winter solstice 1997 2000. A comparison similar times but different phase angles shows is detectable, albeit with less contrast, moderately high (∼90°). Analysis T61 T67 VIMS further supports small tilt superrotating atmosphere solid body Titan, as suggested analysis 0.890 Imaging Science Subsystem.