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IRIS Level 2 Calibrated Images and Spectra Data

Published by LMSAL, HSDC_Europe, SDAC | National Aeronautics and Space Administration | Catalog Last Checked: November 10, 2026 at 11:44 PM | Dataset Last Updated: November 05, 2026
This data set contains calibrated level-2 images and spectra data from the Interface Region Imaging Spectrograph (IRIS). UV images from IRIS telescope record observations of features as small as 240 km (150 miles) on the sun every five to ten seconds at specific temperatures, ranging from 5,000 K to 120,000 K (and up to 10 million K during solar flares). This range allows observations of material moving between the surface of the sun, called the photosphere, and in the lowermost layers of the atmosphere, called the chromosphere and transition region. Spectra are obtained every two to thirty seconds along a slit (1/3 arcsec wide) of solar material at temperatures from 5,000 K to 10 million K, providing information on exactly how much light is visible from any specific wavelength. This corresponds to how much material is present at specific velociites, temperatures and densities. The level-2 data is corrected for dark current, flat-field, and geometric deformation, scaled to the same plate-scale, and packaged into timeseries of slitjaw images and spectral raster scans.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
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]
contactPoint 
{
  "fn": "NASA Space Physics Data Facility",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:NASA-SPDF-Support@nasa.onmicrosoft.com"
}
description This data set contains calibrated level-2 images and spectra data from the Interface Region Imaging Spectrograph (IRIS). UV images from IRIS telescope record observations of features as small as 240 km (150 miles) on the sun every five to ten seconds at specific temperatures, ranging from 5,000 K to 120,000 K (and up to 10 million K during solar flares). This range allows observations of material moving between the surface of the sun, called the photosphere, and in the lowermost layers of the atmosphere, called the chromosphere and transition region. Spectra are obtained every two to thirty seconds along a slit (1/3 arcsec wide) of solar material at temperatures from 5,000 K to 10 million K, providing information on exactly how much light is visible from any specific wavelength. This corresponds to how much material is present at specific velociites, temperatures and densities. The level-2 data is corrected for dark current, flat-field, and geometric deformation, scaled to the same plate-scale, and packaged into timeseries of slitjaw images and spectral raster scans.
distribution 
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identifier https://doi.org/10.48322/k079-z133
keyword 
[
  "imageintensity",
  "spectrum"
]
landingPage https://doi.org/10.48322/k079-z133
license https://www.usa.gov/government-works
modified 2026-11-05
programCode 
[
  "026:000"
]
publisher 
{
  "name": "LMSAL, HSDC_Europe, SDAC",
  "@type": "org:Organization"
}
theme 
[
  "Heliophysics"
]
title IRIS Level 2 Calibrated Images and Spectra Data

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