In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
AffiliationUniv Arizona, Lunar & Planetary Lab
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CitationSimon, A. A., Reuter, D. C., Gorius, N., Lunsford, A., Cosentino, R. G., Wind, G., & Lauretta, D. S. (2018). In-flight calibration and performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS). Remote Sensing, 10(9), 1486.
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AbstractPerformance of the Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) Visible and InfraRed Spectrometer (OVIRS) instrument was validated, showing that it met all science requirements during extensive thermal vacuum ground testing. Preliminary instrument radiometric calibration coefficients and wavelength mapping were also determined before instrument delivery and launch using NIST-traceable sources. One year after launch, Earth flyby data were used to refine the wavelength map by comparing OVIRS spectra with atmospheric models. Near-simultaneous data from other Earth-orbiting satellites were used to cross-calibrate the OVIRS absolute radiometric response, particularly at visible wavelengths. Trending data from internal calibration sources and the Sun show that instrument radiometric performance has been stable to better than 1% in the 18 months since launch.
NoteOpen access journal
VersionFinal published version
SponsorsNASA OSIRIS-REx Project
Except where otherwise noted, this item's license is described as Copyright © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).