As for all Sentinel missions, the Sentinel-5P products are freely available to users via the Copernicus Data Space Ecosystem.

Level 1B – User technical documentation

The information needed to properly use the Level 1B data can be found in Table 1:

• MDS(Metadata Specification): contains the metadata specification of the TROPOMI Level 1b data products
• IODS (Input Output Data Specification): description of the products that are the result from the Level 0 to Level 1b processing
• ATBD (Algorithm Theoretical Basis Document): high level description of the algorithms used in the Level-0 to 1b data processing
• PRF (Product Readme File): description of changes between different product versions and overall quality information (available a few months after launch)

Level 2 – User technical documentation

The information needed to properly use the Level 2 data can be found on Table 2: 

• PUM (Product User Information): information on the technical characteristics of the S5P/TROPOMI Level 2 products
• ATBD (Algorithm Theoretical Basis Document): detailed information on the retrieval algorithms
• IODD (Input Output Data definition): description of the input and output data of the S5P/TROPOMI Level 2 products 
• PRF - description of changes between different products versions and overall quality information

 More documents are available on the S5P document library.

¹ Generated in the Finnish collaborative Ground Segment

² This is an auxiliary/support product containing cloud information relevant to each TROPOMI field-of-view derived from observations made by the VIIRS instrument on NPP