TSIS SIM Level 3 Solar Spectral Irradiance 24-Hour Means V04 (TSIS_SSI_L3_24HR) at GES DISC

Version 04 is the current release of this data product, and supercedes all previous versions.

The TSIS SIM Level 3 Solar Spectral Irradiance (SSI) 24-Hour Means data product (TSIS_SSI_L3_24HR) uses measurements from the Spectral Irradiance Monitor (SIM) instrument, and averages them over a 24-hour period. TSIS-1 was launched on December 15, 2017 and mounted on the International Space Station (ISS) on December 30, 2017. Solar spectra are measured over the spectral range from 200 to 2400 nm at a spectral resolution ranging from 2 nm (0.4 microns). 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 0.2%.

All of the data from this product are arranged into a single file in a tabular ASCII text format which can be easily read into a spreadsheet application. New data are appended to the file on a daily basis. 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 mission.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Erik Richard. 2020-06-04. TSIS_SSI_L3_24HR. Version 04. TSIS SIM Level 3 Solar Spectral Irradiance 24-Hour Means V04. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/TSIS/SIM/DATA308. https://disc.gsfc.nasa.gov/datacollection/TSIS_SSI_L3_24HR_04.html. Digital Science Data.
creator Erik Richard
data-presentation-form Digital Science Data
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/TSIS/images/TSIS_SSI_L3_24HR_04.png
identifier C1770122713-GES_DISC
issued 2020-06-04
landingPage https://doi.org/10.5067/TSIS/SIM/DATA308
language {en-US}
metadata_type geospatial
modified 2020-06-04
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
references {https://doi.org/10.1007/s11207-005-5007-5,https://doi.org/10.1007/s11207-005-1528-1}
release-place Greenbelt, MD, USA
resource-type Dataset
series-name TSIS_SSI_L3_24HR
source_datajson_identifier true
source_hash d53fea607a4eef67fcd4663f284fc6876c1db8a7
source_schema_version 1.1
temporal 2018-03-14T00:00:00Z/2020-11-30T00:00:00Z
theme {TSIS,geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • earth-science
  • geo
  • geoss
  • national
  • north-america
  • solar-activity
  • sun-earth-interactions
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer ERIK RICHARD
maintainer_email Erik.Richard@lasp.colorado.edu
metadata_created 2025-11-21T12:20:51.204665
metadata_modified 2025-11-21T12:20:51.204668
notes Version 04 is the current release of this data product, and supercedes all previous versions. The TSIS SIM Level 3 Solar Spectral Irradiance (SSI) 24-Hour Means data product (TSIS_SSI_L3_24HR) uses measurements from the Spectral Irradiance Monitor (SIM) instrument, and averages them over a 24-hour period. TSIS-1 was launched on December 15, 2017 and mounted on the International Space Station (ISS) on December 30, 2017. Solar spectra are measured over the spectral range from 200 to 2400 nm at a spectral resolution ranging from 2 nm (<0.28 microns) to 45 nm (>0.4 microns). 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 0.2%. All of the data from this product are arranged into a single file in a tabular ASCII text format which can be easily read into a spreadsheet application. New data are appended to the file on a daily basis. 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 mission.
num_resources 13
num_tags 11
title TSIS SIM Level 3 Solar Spectral Irradiance 24-Hour Means V04 (TSIS_SSI_L3_24HR) at GES DISC