THERMAP: a mid-infrared spectro-imager for space missions to small bodies in the inner solar system
We present THERMAP, a mid-infrared (8-16 {\mu}m) spectro-imager for space missions to small bodies in the inner solar system, developed in the framework of the MarcoPolo-R asteroid sample return mission. THERMAP is very well suited to characterize the surface thermal environment of a NEO and to map...
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| creator | Groussin, O Licandro, J Helbert, J J -L Reynaud Levacher, P M Reyes García-Talavera Alí-Lagoa, V P -E Blanc Brageot, E Davidsson, B Delbó, M Deleuze, M Delsanti, A Diaz Garcia, J J Dohlen, K Ferrand, D Green, S Jorda, L E Joven Álvarez Knollenberg, J Kührt, E Lamy, P Lellouch, E J Le Merrer Marty, B Mas, G Rossin, C Rozitis, B Sunshine, J Vernazza, P Vives, S |
| description | We present THERMAP, a mid-infrared (8-16 {\mu}m) spectro-imager for space missions to small bodies in the inner solar system, developed in the framework of the MarcoPolo-R asteroid sample return mission. THERMAP is very well suited to characterize the surface thermal environment of a NEO and to map its surface composition. The instrument has two channels, one for imaging and one for spectroscopy: it is both a thermal camera with full 2D imaging capabilities and a slit spectrometer. THERMAP takes advantage of the recent technological developments of uncooled microbolometers detectors, sensitive in the mid-infrared spectral range. THERMAP can acquire thermal images (8-18 {\mu}m) of the surface and perform absolute temperature measurements with a precision better 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-noise ratio >60 in the spectral range 9-13 {\mu}m where most emission features occur. |
| doi_str_mv | 10.48550/arxiv.1509.02725 |
| format | Article |
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THERMAP is very well suited to characterize the surface thermal environment of a NEO and to map its surface composition. The instrument has two channels, one for imaging and one for spectroscopy: it is both a thermal camera with full 2D imaging capabilities and a slit spectrometer. THERMAP takes advantage of the recent technological developments of uncooled microbolometers detectors, sensitive in the mid-infrared spectral range. THERMAP can acquire thermal images (8-18 {\mu}m) of the surface and perform absolute temperature measurements with a precision better 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-noise ratio >60 in the spectral range 9-13 {\mu}m where most emission features occur.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1509.02725</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Asteroid missions ; Image acquisition ; Infrared spectra ; Inner solar system ; Physics - Earth and Planetary Astrophysics ; Physics - Instrumentation and Methods for Astrophysics ; Sample return missions ; Solar system ; Space missions ; Spectral resolution ; Spectrum analysis ; Temperature ; Thermal environments</subject><ispartof>arXiv.org, 2015-09</ispartof><rights>2015. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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| subjects | Asteroid missions Image acquisition Infrared spectra Inner solar system Physics - Earth and Planetary Astrophysics Physics - Instrumentation and Methods for Astrophysics Sample return missions Solar system Space missions Spectral resolution Spectrum analysis Temperature Thermal environments |
| title | THERMAP: a mid-infrared spectro-imager for space missions to small bodies in the inner solar system |
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