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The surface temperature of an asteroid is fundamental information for thedesign of an exploration mission and the interpretation of scientificobservations. In addition, the thermal radiation of the asteroid causes anon-gravitational acceleration that induces secular changes in its orbit andspin. We have been developing a numerical calculation library for simulatingthe dynamics and thermophysics of asteroids. The asteroid dynamical simulator,\texttt{Astroshaper}, can calculate the temperature distribution based on a3-dimensional shape model of an asteroid and predict the non-gravitationalacceleration. In recent years, asteroid exploration missions such as Hayabusa2and Hera have been equipped with thermal infrared imagers. The asteroidthermography can provide the thermal properties of the surface material of thetarget bodies. The functionality of thermophysical modeling in\texttt{Astroshaper} contributes to simulating the thermal environment on theasteroids, estimating the thermal properties, and predicting the dynamicalevolution controlled by the non-gravitational effects.

Thermophysical Model Development for Hera Mission to Simulate Non-Gravitational Acceleration on Binary Asteroid