VJ102GDC_NRT: VIIRS/JPSS1 Dual-Gain Radiance Swath Data

Global satellite data from the VIIRS sensor aboard the JPSS1 satellite provides calibrated top-of-atmosphere radiances for seven dual-gain moderate-resolution bands (M1-M5, M7, M13). This Near Real-Time (NRT) Level-1B product contains unaggregated, 750-meter resolution sub-pixel samples from nadir and near-nadir zones, which are typically discarded during standard processing. The dataset is generated from six-minute swaths of sensor data, supporting high-dynamic-range observations across visible to infrared wavelengths.

Use Cases

• Sensor calibration validation based on unaggregated dual-gain band radiances.
• High-dynamic-range atmospheric research using calibrated M1-M5, M7, and M13 band data.
• Algorithm development for Level-2 products leveraging the detailed 750-meter nadir zone samples.

Strengths

• Contains high-dynamic-range data from seven dual-gain bands (M1-M5, M7, M13) with 6304 samples per scan.
• Provides unaggregated, calibrated radiance data at 750-meter resolution, offering finer detail than standard products.
• Available in Near Real-Time (NRT), facilitating time-sensitive environmental monitoring.

Limitations

• Metadata completeness is low: column names, row counts, and file sizes are unspecified across all sources.
• Conflicting update dates exist: one source lists 2026-04-09 (a future date), while another lists 2023-07-19, indicating potential metadata errors.
• Documentation is referenced via an external 2015 PDF, which may not reflect current processing algorithms.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Processed from six minutes of VIIRS sensor data acquired during JPSS1 satellite overpasses.

Freshness

2026-04-09 20:47:23.736362 (from datagov, but this is a future date, suggesting a metadata error)

Geography

Global coverage from satellite swaths.