The OTES is designed to make hyperspectral thermal infrared measurements of asteroid Bennu to study mineralogy and themophysical properties, help select a sampling site, and investigate the Yarkovsky effect.

P.R. Christensen, V.E. Hamilton, G.L. Mehall, D. Pelham, W.O'Donnell, S. Anwar, H. Bowles, S. Chase, J. Fahlgren, Z. Farkas, T. Fisher, O. James, I. Kubik, I. Lazbin, M.Miner, M. Rassas. L. Schulze, K. Shamordola, T. Tourville, G. West, R. Woodward, and D. Lauretta. The OSIRIS-REx Thermal Emission Spectrometer (OTES) Instrument, Space Science Reviews, submitted, 2018.

The OSIRIS-REx Thermal Emission Spectrometer (OTES) is a small infrared (4-50 µm) point spectrometer that
         acquires an interferogram every 2 seconds. Interferograms are processed on the ground and converted to infrared spectra. 
         OTES uses space and internal calibration target views for calibration. OTES will map Bennu and the sample site from a 
         distance of 7 to 0.5 km with 55 to 4 m resolution using spacecraft and asteroid motion.

OSIRIS-REx Thermal Emission Spectrometer (OTES)

Description

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