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SORCE SOLSTICE Level 3 MgII Core-to-Wing Ratio 24 Hour Means V018 (SOR3SOLD_MGII_018) at GES DISC

Published by NASA/GSFC/SED/ESD/TISL/GESDISC;UCO/LASP/SORCE | National Aeronautics and Space Administration | Catalog Last Checked: June 02, 2026 at 06:32 PM | Dataset Last Updated: May 18, 2026
The SORCE SOLSTICE Level 3 MgII Core to Wing Ratio 24 Hour Means product consists of daily averages of the magnesium II core-to-wing index from the SOLSTICE instrument. The SOLSTICE instrument makes measurements during each daytime orbit portion, 15 orbits per day. This product has solar spectra averaged for a day. The spectral resolution of SOLSTICE is 0.1 nm, allowing the Mg-II doublet to be fully resolved and modeled with Gaussians. The Mg-II core-to-wing ratio is used as a measurement of solar activity. The Mg-II 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 (calendar and Julian Day), the core/wing ratio, and the absolute uncertainty. The rows are arranged with one daily average measurment, repeating for each day for the length of the measurement period.

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Complete Metadata
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description The SORCE SOLSTICE Level 3 MgII Core to Wing Ratio 24 Hour Means product consists of daily averages of the magnesium II core-to-wing index from the SOLSTICE instrument. The SOLSTICE instrument makes measurements during each daytime orbit portion, 15 orbits per day. This product has solar spectra averaged for a day. The spectral resolution of SOLSTICE is 0.1 nm, allowing the Mg-II doublet to be fully resolved and modeled with Gaussians. The Mg-II core-to-wing ratio is used as a measurement of solar activity. The Mg-II 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 (calendar and Julian Day), the core/wing ratio, and the absolute uncertainty. The rows are arranged with one daily average measurment, repeating for each day for the length of the measurement period.
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identifier 10.5067/UZBU0ANMH4ES
keyword 
                                            [
  "earth-science-solar-activity-sun-earth-interactions-solar-irradiance-solar-spectral-irradiance"
]
license https://www.usa.gov/government-works
modified 2026-05-18
programCode 
                                            [
  "026:000"
]
publisher 
                                            {
  "name": "NASA/GSFC/SED/ESD/TISL/GESDISC;UCO/LASP/SORCE",
  "@type": "org:Organization"
}
temporal 2003-03-05/2020-02-25
theme 
                                            [
  "Earth Science"
]
title SORCE SOLSTICE Level 3 MgII Core-to-Wing Ratio 24 Hour Means V018 (SOR3SOLD_MGII_018) at GES DISC

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