VIIRS/NPP Hourly Cumulative 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 Hourly Cumulative 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 21, 2026, 05:05 (UTC)
Created May 19, 2025, 05:37 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 383570bb-5056-4403-8141-9fb04e7ce02a
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/VIIRS/VNP46A1G_NRT.001
license https://www.usa.gov/government-works
modified 2026-04-13T22:16:02Z
programCode {026:000}
publisher NASA/GSFC/EOS/ESDIS/LANCE MODIS
resource-type Dataset
source_datajson_identifier true
source_hash 2717923f40260d3155f2c6c70c282c825a4330d01ec0e3f53ae2d61e83aeabe7
source_schema_version 1.1
spatial ["CARTESIAN",[{"NorthBoundingCoordinate":90.0,"WestBoundingCoordinate":-180.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-90.0}]]
temporal 2020-12-25/2026-04-13
theme {"Earth Science"}