### Jupiter

Jupiter is the giant planet for which the new models induce the smallest change: the 2024 brightness temperature is slightly lower at frequencies below 100 GHz and above 300 GHz, but the offset remains smaller than 3%. We note that the CASA model has a similar shape, but is always 2-3% lower than the ASTRO (Legacy or 2024) values.

Given this small difference and the fact that Jupiter is not used frequently for flux calibration, we can say that the switch to new brightness temperature spectrum in ASTRO will have no impact for the users.