S5P_L1B_RA_BD5_HiR_NRT: Near-Real-Time Satellite Radiance for Atmospheric Monitoring

Sentinel-5P TROPOMI NRT Radiance product band 5 provides near-real-time Level-1B data from the TROPOspheric Monitoring Instrument. Data granules, each approximately 0.650 GB and containing one orbit of radiance, irradiance, calibration, and engineering products, are typically available within three hours of measurement. This near-real-time version is intended for rapid assessment and is archived for only up to ten days, with users directed to the offline product for long-term or rigorous analysis.

Use Cases

• Rapid air quality assessment based on near-infrared (NIR) radiance measurements.
• Calibration and validation of atmospheric models using provided calibration and engineering data.
• Short-term event monitoring (e.g., wildfires, dust storms) leveraging the three-hour data latency.
• Hyperspectral analysis of atmospheric composition across UV-VIS, NIR, and SWIR wavelengths.

Strengths

• Provides data with a rapid three-hour turnaround, suitable for time-sensitive monitoring.
• Data is produced by a well-defined processing chain from KNMI using the netCDF-4 enhanced model.
• Each data granule contains a complete orbit of information, with a consistent file size of ~0.650 GB.

Limitations

• Data is only archived for up to ten days, limiting its utility for historical analysis.
• Specific column names and detailed schema are not provided in the available metadata.
• Conflicting spatial resolutions are noted in the shared metadata (5.5km x 21km vs. 5.5km x 3.5km).

Provenance

Source

European Space Agency (ESA) and the Kingdom of the Netherlands; processed by Koninklijk Nederlands Meteorologisch Instituut (KNMI); hosted by NASA GES DISC.

Collection Method

Generated by the KNMI TROPOMI L01B processor from Level-0 input and auxiliary data.

Time Range

Near-real-time, with measurements from the ongoing Sentinel-5P mission.

Freshness

2026-04-09 22:26:05.767346

Geography

Global coverage from the Sentinel-5P satellite's nadir-viewing, 108-degree field-of-view instrument.