VJ102GDC_NRT: VIIRS Dual-Gain Band Radiance Swaths

VIIRS/JPSS1 sensor data provides unaggregated, calibrated top-of-atmosphere radiances for seven specific dual-gain moderate-resolution bands (M1-M5, M7, M13) at 750-meter resolution. Each 6-minute swath product contains 6304 samples for these dual-gain bands, preserving sub-pixel data typically discarded during standard ground processing. This near-real-time Level-1B product supports detailed radiometric analysis across visible (0.640 micron) to infrared (11.45 micron) wavelengths.

Use Cases

• Calibrating atmospheric models based on unaggregated dual-gain band radiances.
• Analyzing sensor performance and error budgets using the preserved sub-pixel samples.
• Developing new aggregation algorithms for moderate-resolution satellite data.
• Conducting time-series analysis of Earth's reflectance and emission across specific spectral bands.

Strengths

• Provides data for 7 specific dual-gain bands (M1-M5, M7, M13) with 6304 samples per band, offering high sample density.
• Delivers data in near-real-time (NRT), enabling timely analysis.
• Cross-platform presence on Data.gov and NASA EarthData signals its importance and reliability.
• Supported by a detailed Algorithm Theoretical Basis Document (ATBD) outlining the calibration equations and error budgets.

Limitations

• Column names and exact data structure are unknown across all sources, hindering precise technical understanding.
• Key metadata such as row count, file size, and author are consistently missing or listed as 'None'.
• The license is ambiguously listed as 'other-license-specified' without explicit terms.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Generated from processing 6 minutes of VIIRS sensor data acquired during the JPSS1 (Suomi NPP) satellite overpass.

Time Range

Near-real-time coverage; specific start date not provided.

Freshness

Last updated on 2026-04 09 on Data.gov, indicating active maintenance.

Geography

Global swath coverage from the JPSS1 satellite orbit.