VIIRS/NPP Granular Gridded Day Night Band 500m Linear Lat. Lon. Grid Night NRT

The Near Real Time (NRT) Suomi National Polar-Orbiting Partnership (S-NPP) NASA Visible Infrared Imaging Radiometer Suite (VIIRS) hourly top-of-atmosphere, at-sensor nighttime radiance product called VIIRS/NPP Granular Gridded Day Night Band 500m Linear Lat Lon Grid Night. Known by its short-name, VNP46A1G_NRT, is same as VNP46A1_NRT except that this product is generated hourly, cumulative from start of day through the hour the file is generated for. This product contains 26 Science Data Sets (SDS) that include sensor radiance, zenith and azimuth angles (at-sensor, solar, and lunar), cloud-mask flags, time, shortwave IR radiance, brightness temperatures, VIIRS quality flags, moon phase angle, and moon illumination fraction. It also provides Quality Flag (QF) information specific to the cloud-mask, VIIRS moderate-resolution bands M10, M11, M12, M13, M15, M16, and DNB.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 6, 2026, 22:05 (UTC)
Created April 1, 2025, 19:58 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 54c35139-551b-4bc7-a489-2a2de606e06a
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/VIIRS/VNP46A1G_NRT.002
license https://www.usa.gov/government-works
modified 2026-03-30T22:16:02Z
programCode {026:000}
publisher NASA/GSFC/EOS/ESDIS/LANCE MODIS
resource-type Dataset
source_datajson_identifier true
source_hash 17742aa92d426d9198e6cf3f267987ee4ad837d94446eeae06b3cf9cf6dd0bee
source_schema_version 1.1
spatial ["CARTESIAN",[{"NorthBoundingCoordinate":90,"WestBoundingCoordinate":-180,"EastBoundingCoordinate":180,"SouthBoundingCoordinate":-90}]]
temporal 2023-10-10/2026-03-30
theme {"Earth Science"}