VJ202DNB: VIIRS Day/Night Band Satellite Imagery at 750m Resolution

Reprocessed Level-1B data from the JPSS-2/NOAA-21 satellite provides calibrated radiance measurements from a panchromatic Day-Night band. The band's spectral wavelength ranges from 0.5 to 0.9 micrometers and facilitates measuring night lights and reflected solar or lunar illumination across a large dynamic range. The data is produced by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Mapping urban light pollution and nighttime human activity based on calibrated radiance measurements.
• Analyzing reflected lunar illumination for environmental monitoring in low-light conditions.
• Calibrating other satellite imagery using the updated reflective solar band calibration mentioned in the description.
• Studying the dynamic range of Earth's albedo from quarter-moon to daylight brightness.

Strengths

• Spatial resolution is specified as 750 meters across the entire scan.
• Spectral wavelength range is precisely defined as 0.5 to 0.9 micrometers.
• The description notes calibration updates for reflective solar bands.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or temporal bias inherent to the satellite's polar orbit.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from the VIIRS instrument aboard the Joint Polar-orbiting Satellite System-2 (JPSS-2/NOAA-21).

Freshness

Last updated 2026-03-12 20:00:37.216000; freshness should be verified.

Geography

Global coverage from a polar-orbiting satellite.