The HyTI (Hyperspectral Thermal Imager) mission, funded by NASA's Earth Science Technology Office InVEST (In-Space Validation of Earth Science Technologies) program, will demonstrate how high spectral and spatial long-wave infrared image data can be acquired from a 6U CubeSat platform. The mission will use a spatially modulated interferometric imaging technique to produce spectro-radiometrically calibrated image cubes, with 25 channels between $8-10.7\ \mu\mathrm{m}$, at 13 cm −1 resolution), at a ground sample distance of ∼60 m. The HyTI performance model indicates narrow band $\text{NE}\Delta\text{Ts}$ of