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SORCE SIM Level 3 Solar Spectral Irradiance Daily Means V027 (SOR3SIMD) at GES DISC

Published by NASA/GSFC/SED/ESD/TISL/GESDISC;UCO/LASP/SORCE | National Aeronautics and Space Administration | Catalog Last Checked: June 25, 2026 at 01:31 PM | Dataset Last Updated: June 23, 2026
Version 027 is the final version of this data product, and supersedes all previous versions. The SORCE SIM Solar Spectral Irradiance (SSI) data product SOR3SIMD is constructed using measurements from the SIM instruments, which are combined into merged daily solar spectra over the spectral range from 240 to 2416 nm at a spectral resolution ranging from 1 to 27 nm. Irradiances are reported at a mean solar distance of 1 AU and zero relative line-of-sight velocity with respect to the Sun. The SIM absolute uncertainty is about 2%. All of the SOR3SIMD data are arranged in a single file in a tabular ASCII text file which can be easily read into a spreadsheet application. The columns contain the date, Julian day, minimum wavelength, maximum wavelength, instrument mode, data version number, irradiance value, irradiance uncertainty, and data quality. The rows are arranged with data at each wavelength over the full SIM wavelength range, repeating for each day for the length of the measurement period.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
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  "@type": "vcard:Contact",
  "hasEmail": "mailto:earthdata-support@nasa.gov"
}
description Version 027 is the final version of this data product, and supersedes all previous versions. The SORCE SIM Solar Spectral Irradiance (SSI) data product SOR3SIMD is constructed using measurements from the SIM instruments, which are combined into merged daily solar spectra over the spectral range from 240 to 2416 nm at a spectral resolution ranging from 1 to 27 nm. Irradiances are reported at a mean solar distance of 1 AU and zero relative line-of-sight velocity with respect to the Sun. The SIM absolute uncertainty is about 2%. All of the SOR3SIMD data are arranged in a single file in a tabular ASCII text file which can be easily read into a spreadsheet application. The columns contain the date, Julian day, minimum wavelength, maximum wavelength, instrument mode, data version number, irradiance value, irradiance uncertainty, and data quality. The rows are arranged with data at each wavelength over the full SIM wavelength range, repeating for each day for the length of the measurement period.
distribution 
[
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identifier 10.5067/LDDKZ3PXZZ5G
keyword 
[
  "earth-science-solar-activity-sun-earth-interactions-solar-irradiance"
]
license https://www.usa.gov/government-works
modified 2026-06-23
programCode 
[
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]
publisher 
{
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  "@type": "org:Organization"
}
temporal 2003-04-14/2020-02-25
theme 
[
  "Earth Science"
]
title SORCE SIM Level 3 Solar Spectral Irradiance Daily Means V027 (SOR3SIMD) at GES DISC

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