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Description

The VIIRS/JPSS2 Day/Night Band 6-Min L1B Swath 750 m, short-name VJ202DNB, of the Joint Polar-orbiting Satellite System-2 (JPSS-2/NOAA-21; referred to hereafter as J2) platform-derived single NASA VIIRS panchromatic Day-Night band (DNB) calibrated radiance product. The DNB is one of the M-bands with an at-nadir spatial resolution of 750 meters (across the entire scan). The panchromatic DNB’s spectral wavelength ranges from 0.5 micrometer to 0.9 micrometer. It facilitates measuring night lights, reflected solar/lunar lights with a large dynamic range between a low of a quarter moon illumination to the brightest daylight.

The J2 VIIRS radiometric calibration Level-1B reprocessing includes a few calibration updates for the reflective solar bands (RSB), but no significant changes for the day-night band (DNB) or thermal emissive bands (TEB).

For more information and for users guide, visit:

https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/products/VJ202DNB

Version Description

NOAA-21 (JPSS2) VIIRS Version 2.1 Data

Product Summary

Platforms
NOAA-21
Instruments
VIIRS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
750 Meters x 750 Meters
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2023-02-10 to Present
Data Partner
VIIRS Characterization Support Team (MCST), Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/BSL/VCST) ,
MODIS Adaptive Processing System, Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS) ,
L1 and Atmosphere Archive and Distribution System,Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/H
Concept ID
C3478383924-LAADS
Data State
ACTIVE
Number of Files/Granules
247636
Processing Level
1B
Published
Science Keywords
Infrared Radiance ,
REFLECTED INFRARED ,
Visible Radiance

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

VIIRS Calibration Support Team (VCST). (2025). VIIRS/JPSS2 Day/Night Band 6-Min L1B Swath 750 m [Data set]. NASA Level 1 and Atmosphere Archive and Distribution System Distributed Active Archive Center. https://doi.org/10.5067/VIIRS/VJ202DNB.021 Date Accessed: 2025-12-14

File Naming Convention

Syntax: ESDT.AYYYYDDD.HHMM.CCC.YYYYDDDHHMMSS.Format
Example: VJ202DNB.A2023224.0512.002.2023276014849.nc

ESDT Earth Science Data Type or Shortname
A Stands for Acquisition
YYYYDDD Data acquisition year and Day-of-year per the Julian Calendar
HHMM Acquisition Hour and Minute
CCC Version ID of the data collection
YYYYDDDHHMMSS Processing year, Day-of-year, UTC time (hour, minutes, seconds)
Format File format suffix, which in the above case represents netCDF4/HDF5

Documents

USER'S GUIDE

ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)