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We present THERMAP, a mid-infrared (8-16 {\mu}m) spectro-imager for spacemissions to small bodies in the inner solar system, developed in the frameworkof the MarcoPolo-R asteroid sample return mission. THERMAP is very well suitedto characterize the surface thermal environment of a NEO and to map its surfacecomposition. The instrument has two channels, one for imaging and one forspectroscopy: it is both a thermal camera with full 2D imaging capabilities anda slit spectrometer. THERMAP takes advantage of the recent technologicaldevelopments of uncooled microbolometers detectors, sensitive in themid-infrared spectral range. THERMAP can acquire thermal images (8-18 {\mu}m)of the surface and perform absolute temperature measurements with a precisionbetter than 3.5 K above 200 K. THERMAP can acquire mid-infrared spectra (8-16{\mu}m) of the surface with a spectral resolution {\Delta}{\lambda} of 0.3{\mu}m. For surface temperatures above 350 K, spectra have a signal-to-noiseratio >60 in the spectral range 9-13 {\mu}m where most emission features occur.

THERMAP: a mid-infrared spectro-imager for space missions to small bodies in the inner solar system