Sentinel-6B/Jason-CS L2 P4 Altimeter High Resolution (HR) NRT Reduced Ocean Surface Topography

Provides L2 high resolution (HR) near real time (NRT; 3-hour latency) altimetry from the Poseidon-4 SAR altimeter on the Sentinel-6B spacecraft. It contains Sea Surface Height (SSH), Sea Surface Height Anomalies (SSHA) and Significant Wave Height (SWH), along with 1 Hz Ku-band measurements processed from L1B altimetry including the range, orbital altitude, time, and water vapour. It also includes altimetry corrections, significant wave height and wind-speed from the AMR-C. This release is reduced to exclude the 20 Hz observations that are included in the standard product. The S6B NRT product is analogous to the Jason-3 OGDR product.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 25, 2026, 10:38 (UTC)
Created August 11, 2026, 01:16 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/S6BP4-2HRNR
license https://www.usa.gov/government-works
modified 2026-08-17T22:16:03Z
programCode {026:000}
publisher NASA/JPL/PODAAC
resource-type Dataset
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spatial ["CARTESIAN", [{"NorthBoundingCoordinate": 66.15, "WestBoundingCoordinate": -180, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -66.15}]]
theme {"Earth Science"}