Sentinel-3 Next Generation Topography Phases B2/C/D/E1 Reference number: 1-12967
Buyer: European Space Agency
- Published
- 26 June 2025
- Place of performance
- NL363
- Notice number
- 00412970-2025
- Official source
- Official source
CPV codes
- 35631200Satélites de observación
Description
The Sentinel-3 Next Generation Topography Phases B2/C/D/E1, subject of this procurement, will guarantee the continuity of the Sentinel-3 first generation mission products. S3 NG-T space segment features a constellation of two identical satellites (A- and B-units) flying in a 817 km, sun-synchronous dawn-dusk orbit, following the same ground track pattern as the Sentinel-3 first generation. Each satellite will embark a nadir altimeter, Poseidon-5 (POS-5), a Swath Altimeter for Operational Oceanography and Hydrology (SAOOH), and a multi-beam, multi-channels microwave radiometer (MWR). POS-5 is an evolution of the Ku- and C-band Poseidon-4 nadir altimeter embarked on-board Sentinel-6, that has demonstrated a breakthrough in performance in comparison with that of the Sentinel-3 first generation in terms of noise and stability performances, and takes into account the architectural development of the CRISTAL altimeter. SAOOH provides topographic measurements with shallow angle interferometric SAR Kaband altimetry. The MWR supports both altimeters with wet tropospheric corrections with three beams covering the nadir and the two lateral swath surfaces. The high frequency channels allow to…
Official publications
- TED · 00412970-2025 · 26 June 2025
- OJS · 120/2025 · 26 June 2025
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