Space Weather Products and Services

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Swarm Total Electron Content (TEC) - Product description and access

Swarm Total Electron Content (TEC) provides integrated electron density along the line of sight of a GPS ray received at the Swarm satellite. Swarm satellite received up to 8 GPS satellites simultaneously, therefore, multiple TEC observations at the same universal time (UTC) are possible.

Swarm TEC is provided as Level 2 (L2) data product by ESA’s Earth’s Observation program for each received GPS satellite with a 1Hz cadence. The data are provided in daily files in Common Data Format (CDF). The product names are TECxTMS_2F, with x = A, B, C for the 3 satellites respectively.

More information on the Swarm L2 TEC product, including definitions, descriptions, metadata, and data access, is available at: https://swarmhandbook.earth.esa.int/catalogue/SW_TECxTMS_2F.