Suomi-NPP VIIRS Level-1A Geolocation Data, version 2
Level 1A (L1A) data are reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information. This ancillary information can include radiometric and geometric calibration coefficients and georeferencing parameters (e.g., platform ephemeris).
The Geolocation (GEO) collection provides terrain-corrected geolocation, viewing geometry, and navigation information required to accurately map satellite observations to Earth coordinates. The products include per-pixel latitude and longitude, surface height, solar and sensor zenith and azimuth angles, along with quality flags describing geolocation validity. In addition, scan-level timing, spacecraft attitude, and orbital navigation parameters are provided to support precise georeferencing and downstream processing. The GEO data are distributed in self-describing data formats and are intended to be used in conjunction with Level-1 radiance products to enable the generation and analysis of higher-level geophysical data products.
Resources
5 resources available
-
Original Metadata
ISO -
Resource 2
BIN -
Resource 3
HTML -
Resource 4
PDF -
Resource 5
PDF
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "Earthdata Forum", "@type": "vcard:Contact", "hasEmail": "mailto:earthdata-support@nasa.gov" } |
| description | Level 1A (L1A) data are reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information. This ancillary information can include radiometric and geometric calibration coefficients and georeferencing parameters (e.g., platform ephemeris). The Geolocation (GEO) collection provides terrain-corrected geolocation, viewing geometry, and navigation information required to accurately map satellite observations to Earth coordinates. The products include per-pixel latitude and longitude, surface height, solar and sensor zenith and azimuth angles, along with quality flags describing geolocation validity. In addition, scan-level timing, spacecraft attitude, and orbital navigation parameters are provided to support precise georeferencing and downstream processing. The GEO data are distributed in self-describing data formats and are intended to be used in conjunction with Level-1 radiance products to enable the generation and analysis of higher-level geophysical data products. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "ISO", "mediaType": "text/xml", "conformsTo": "http://www.isotc211.org/2005/gmi", "description": "The metadata's original source.", "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C2564699037-NSIDCV0.iso19115" }, { "@type": "dcat:Distribution", "format": "BIN", "mediaType": "application/octet-stream", "downloadURL": "https://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0105_snowmelt_on_seaice_v5/" }, { "@type": "dcat:Distribution", "format": "HTML", "mediaType": "text/html", "downloadURL": "https://doi.org/10.5067/TRGWQ0ONTQG5" }, { "@type": "dcat:Distribution", "format": "PDF", "mediaType": "application/pdf", "downloadURL": "https://nsidc.org/sites/default/files/documents/technical-reference/smmr-ssmi-ssmis-sensors.pdf" }, { "@type": "dcat:Distribution", "format": "PDF", "mediaType": "application/pdf", "downloadURL": "https://nsidc.org/sites/default/files/documents/user-guide/nsidc-0105-userguide-v5.pdf" } ] |
| identifier | 10.5067/SUOMI-NPP/VIIRS/L1A/GEO/2 |
| keyword |
[ "earth-science-geodetics-solid-earth", "earth-science-sensor-characteristics-spectral-engineering", "earth-science-sensor-characteristics-spectral-engineering-geolocation" ] |
| license | https://www.usa.gov/government-works |
| modified | 2026-06-23 |
| programCode |
[ "026:000" ] |
| publisher |
{ "name": "NASA/GSFC/SED/ESD/GCDC/OB.DAAC;OBPG", "@type": "org:Organization" } |
| spatial |
"["CARTESIAN", [{"NorthBoundingCoordinate": 90, "SouthBoundingCoordinate": -90, "EastBoundingCoordinate": 180, "WestBoundingCoordinate": -180}]]"
|
| temporal | 2012-01-02/2026-06-15 |
| theme |
[ "Earth Science" ] |
| title | Suomi-NPP VIIRS Level-1A Geolocation Data, version 2 |
