Instrument calibration of the Interface Region Imaging Spectrograph (IRIS) mission

The Interface Region Imaging Spectrograph (IRIS) is a NASA small explorer mission that provides high-resolution spectra and images of the Sun in the 133-141nm and 278-283nm wavelength bands. The IRIS data are archived in calibrated form and made available to the public within seven days of observing. The calibrations applied to the data include dark correction, scattered light and background correction, flat fielding, geometric distortion correction, and wavelength calibration. In addition, the IRIS team has calibrated the IRIS absolute throughput as a function of wavelength and has been tracking throughput changes over the course of the mission. As a resource for the IRIS data user, this article describes the details of these calibrations as they have evolved over the first few years of the mission. References to online documentation provide access to additional information and future updates.

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Copyright 2018 Author(s). This work is licensed under a Creative Commons Attribution 4.0 International license.
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Author Wülser, J.
Jaeggli, S.
De Pontieu, B.
Tarbell, T.
Boerner, P.
Freeland, S.
Liu, W.
Timmons, R.
Brannon, S.
Kankelborg, C.
Madsen, C.
McKillop, S.
Prchlik, J.
Saar, S.
Schanche, N.
Testa, P.
Bryans, Paul
Wiesmann, M.
Publisher UCAR/NCAR - Library
Publication Date 2018-11-30T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2025-07-11T19:33:01.255041
Metadata Record Identifier edu.ucar.opensky::articles:22098
Metadata Language eng; USA
Suggested Citation Wülser, J., Jaeggli, S., De Pontieu, B., Tarbell, T., Boerner, P., Freeland, S., Liu, W., Timmons, R., Brannon, S., Kankelborg, C., Madsen, C., McKillop, S., Prchlik, J., Saar, S., Schanche, N., Testa, P., Bryans, Paul, Wiesmann, M.. (2018). Instrument calibration of the Interface Region Imaging Spectrograph (IRIS) mission. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7vm4g63. Accessed 15 August 2025.

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