TROPOMI uses a single telescope to focus light onto a spectrometer system consisting of four distinct channels: mediumwave ultraviolet (UV), longwave ultraviolet and visible (UVIS), near infrared (NIR), and shortwave infrared (SWIR). The UV, UVIS, and NIR spectrometers are grouped as the UVN module. To meet specific thermal requirements, radiation for the SWIR channel is transferred from the telescope to the SWIR interface via an optical relay within the UVN system.

Validation Summary

Dataset Specifications

Examples of filenames:

S5P_OFFL_L1B_IR_UVN_20260201T131008_20260201T145139_43033_03_030000_20260201T164108.nc S5P_OFFL_L1B_IR_SIR_20260201T131008_20260201T145139_43033_03_030000_20260201T164108.nc S5P_RPRO_L1B_IR_UVN_20220701T125629_20220701T143758_24433_03_020100_20230104T141142.nc S5P_RPRO_L1B_IR_SIR_20220701T125629_20220701T143758_24433_03_020100_20230104T141142.nc

Elements in the filename separated by underscores after the initial "S5P":
* processing type: near-real time (NRTI), off-line (OFFL), reprocessing of off-line (RPRO)
* product identifier [10 char.]
* start date and time of the full orbit in which the irradiance measurement was taken
* end date and time of the full orbit
* orbit number [5 char.]
* collection number [2 char.]
* version number [6 char.]
* production date and time
In case of OFFL and RPRO contain single irradiances; near-real time (NRTI) is not defined for irradiances.

Dataset Specifications V3

Temporal Coverage

Since 27-Nov-2025

Spatial CoverageN/A
Spatial Resolution

N/A

Processor Version03.xx.xx, with x=any digit between 0 and 9

Dataset Specifications V2

Temporal Coverage

From 01-Jul-2021 to 27-Nov-2025

Spatial Coverage

N/A

Spatial Resolution

N/A

Processor Version02.xx.xx, with x=any digit between 0 and 9

Dataset Specifications V1

Temporal Coverage

From 30-Apr-2018 to 01-Jul-2021

Spatial CoverageN/A
Spatial ResolutionN/A
Processor Version01.xx.xx, with x=any digit between 0 and 9

How to Access the Data

The data related to this product and to the other S5P/TROPOMI products are accessible via the  Copernicus Data Space Ecosystem (CDSE).

Dataset Citation Guidelines

Users, who, in their research, use ESA Earth Observation data that have been assigned a DOI, are asked to use it when citing the data source in their publications:

Dataset Citation Guidelines V3

Copernicus Sentinel-5P (processed by ESA), 2025, TROPOMI Level 1B Irradiance products. Version 03. European Space Agency. https://doi.org/10.57780/S5P-dfac5ad

Dataset Citation Guidelines V2

Copernicus Sentinel-5P (processed by ESA), 2021, TROPOMI Level 1B Irradiance products. Version 02. European Space Agency. https://doi.org/10.5270/S5P-mhtbru8

Dataset Citation Guidelines V1

Copernicus Sentinel-5P (processed by ESA), 2018, TROPOMI Level 1B Irradiance products. Version 01. European Space Agency.