Table 3.

HiTeSEM instrument concept.

Instrument	Scanning Thermal Infrared Imaging Spectrometer with an Integrated High-Resolution Imager
Optic Design	Wide-Field Korsch Telescope
Dispersive Element	Linear Variable Filter (LVF) (interference filter)
Detector	Seven staggered detector-modules consisting of hybridised MCT detectors with CMOS ROIC, LVF, band-pass filters (about 20 mm × 10 mm)
Thermal Control	Detector module actively cooled to 70 K, warm optics, dedicated instrument radiator, FPA dissipation <300 mW
Structural	All SiC (silicon carbide) homothetic design; optical elements and focal plane mounted on optical bench; isostatic mounting on S/C
Calibration	On-board blackbody @330 K; deep space view by S/C