The ExoMars Spectral Tool (ExoSpec) : an image analysis tool for ExoMars 2020 PanCam imagery

This work was supported by the UK Space Agency (ST/P001297/1 and ST/P001394/1). Cousins also acknowledges the Royal Society of Edinburgh for funding. The upcoming launch of the European Space Agency (ESA) ExoMars 2020 rover signals a need for an analysis tool to be created which can exploit the mult...

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Bibliographic Details
Published in:Image and Signal Processing for Remote Sensing XXIV
Main Authors: Allender, Elyse, Stabbins, Roger, Gunn, Matthew, Cousins, Claire R., Coates, Andrew
Other Authors: Bruzzone, Lorenzo, Bovolo, Francesca, The Royal Society of Edinburgh, Science & Technology Facilities Council, University of St Andrews. St Andrews Centre for Exoplanet Science, University of St Andrews. School of Earth & Environmental Sciences
Format: Conference Object
Language:English
Published: 2019
Subjects:
European Space Agency
ESA
ExoMars
PanCam
ENVI IDL
Spectral
Processing
QA76 Computer software
QB Astronomy
QC Physics
T Technology
NDAS
QA76
QB
QC
T
Iceland
Online Access:http://hdl.handle.net/10023/16973
https://doi.org/10.1117/12.2325659
Description
Summary:This work was supported by the UK Space Agency (ST/P001297/1 and ST/P001394/1). Cousins also acknowledges the Royal Society of Edinburgh for funding. The upcoming launch of the European Space Agency (ESA) ExoMars 2020 rover signals a need for an analysis tool to be created which can exploit the multi- and hyperspectral data that will be returned by its Panoramic Camera (PanCam), Infrared Spectrometer for Mars (ISEM), and Close-UP Imager (CLUPI) instruments. Data processed by this analysis tool will be invaluable in (i) characterising the geology local to the ExoMars rover, (ii) relating ground-based observations to orbital Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) data, (iii) detecting evidence of past habitability on Mars, and (iv) identifying drilling locations. PanCam, ISEM, and CLUPI offer spectral analysis capabilities in both spatial (140-1310 microns/pixel at 2 m working distance) and spectral (440-3300 nm) dimensions. We have developed the ExoMars Spectral Tool (ExoSpec) which functions as a GUI-based extension to ENVI + IDL and performs steps from image import and compilation into ENVI .dat format, flat-fielding, radiometric correction, radiance-toreflectance (R*) corrections using the in-scene Gretag MacBeth ColorCheckerTM, and calculation of spectral parameters. We demonstrate the functionality of ExoSpec at its current stage of development and illustrate its utility with results from field expeditions to Mars analogue terrains in: (i) geothermally altered basalts in N´amafjall, Iceland, and (ii) layered alluvial plains deposits in Hanksville, USA, using ExoMars PanCam, ISEM, and CLUPI emulator instruments. Publisher PDF

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