In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)

In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)

Performance 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 instrumen...

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Main Authors: Amy A. Simon, Dennis C. Reuter, Nicolas Gorius, Allen Lunsford, Richard G. Cosentino, Galina Wind, Dante S. Lauretta, the OSIRIS-REx Team
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Remote Sensing
Subjects:
calibration
radiometry
spectrometer
Online Access:http://www.mdpi.com/2072-4292/10/9/1486
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spelling doaj-d901a8bd48224317ac2f5c604bba7fb92020-11-25T00:46:48ZengMDPI AGRemote Sensing2072-42922018-09-01109148610.3390/rs10091486rs10091486In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)Amy A. Simon0Dennis C. Reuter1Nicolas Gorius2Allen Lunsford3Richard G. Cosentino4Galina Wind5Dante S. Lauretta6the OSIRIS-REx Team7NASA Goddard Space Flight Center, Greenbelt, MD 20771, USANASA Goddard Space Flight Center, Greenbelt, MD 20771, USAPhysics Department, Catholic University of America, Washington, DC 20064, USAPhysics Department, Catholic University of America, Washington, DC 20064, USANASA Postdoctoral Fellow, Greenbelt, MD 20771, USAScience Systems and Applications, Inc., Greenbelt, MD 20771, USALunar and Planetary Lab, University of Arizona, Tucson, AZ 85721, USALunar and Planetary Lab, University of Arizona, Tucson, AZ 85721, USAPerformance 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.http://www.mdpi.com/2072-4292/10/9/1486calibrationradiometryspectrometer
collection DOAJ
language English
format Article
sources DOAJ
author Amy A. Simon
Dennis C. Reuter
Nicolas Gorius
Allen Lunsford
Richard G. Cosentino
Galina Wind
Dante S. Lauretta
the OSIRIS-REx Team
spellingShingle Amy A. Simon
Dennis C. Reuter
Nicolas Gorius
Allen Lunsford
Richard G. Cosentino
Galina Wind
Dante S. Lauretta
the OSIRIS-REx Team
In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
Remote Sensing
calibration
radiometry
spectrometer
author_facet Amy A. Simon
Dennis C. Reuter
Nicolas Gorius
Allen Lunsford
Richard G. Cosentino
Galina Wind
Dante S. Lauretta
the OSIRIS-REx Team
author_sort Amy A. Simon
title In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
title_short In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
title_full In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
title_fullStr In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
title_full_unstemmed In-Flight Calibration and Performance of the OSIRIS-REx Visible and IR Spectrometer (OVIRS)
title_sort in-flight calibration and performance of the osiris-rex visible and ir spectrometer (ovirs)
publisher MDPI AG
series Remote Sensing
issn 2072-4292
publishDate 2018-09-01
description Performance 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.
topic calibration
radiometry
spectrometer
url http://www.mdpi.com/2072-4292/10/9/1486
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