HyTI – Hyperspectral Thermal Imager

HSFL and HIGP are partnered with the Microdevices Laboratory at JPL in leading the NASA HyTI (Hyperspectral Thermal Imager) mission, funded by NASA’s Earth Science Technology Office InVEST (In-Space Validation of Earth Science Technologies) program. This mission 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 ųm, at a ground sample distance of ~60 m. The HyTI performance model indicates narrow band NE△Ts of < 0.3 K. The small form factor of HyTI is made possible via the use of a no-moving-parts Fabry-Perot interferometer, and JPL’s cryogenically-cooled HOT-BIRD FPA technology. Launch is scheduled for no earlier than Fall 2021. The value of HyTI to Earth scientists will be demonstrated via on-board processing of the raw instrument data to generate L1 and L2 products, with a focus on rapid delivery of data regarding volcanic degassing, land surface temperature, and precision agriculture metrics.

The SmallSat paper can be downloaded here.
The SmallSat presentation can be downloaded here.

 

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