2:45 PM - 3:00 PM
[PCG30-06] Separation of effects of albedo and emissivity on the thermal evolution of asteroid by using TIR on board Hayabusa-2
Keywords:Hayabusa-2, TIR, albedo, emissivity
For the case of time evolution of surfae temperature is affected by thermal flux from/ to the underground. The effect can be observed as time-delay of peak temperature relative to sub-solar longitude. This indicate that a time-series observation of surface temperature allow the separation of effects of albedo and emissivity on the evolution.
In this presentation, we will show our storategy to estimate the albedo and the emissivity of the target asteroid of Hayabusa-2,1999JU3, by using TIR (Thermal InfraRed) imager.