Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991
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Synthetic aperture radar (SAR) image of the Kenai Peninsula. Sentinel-1A 2014.Part of Alaska's mountainous, glacier-rich Kenai Peninsula. Near the middle of the image, the town of Seward can be seen as a small white patch at the head of Resurrection Bay. Copernicus Sentinel data 2014.

Data & Imagery

The Sentinel-1 data available from ASF (from both Sentinel-1A and Sentinel-1B) comprise a complete historical archive of Sentinel-1 synthetic aperture radar (SAR) data processed by the European Space Agency (ESA).

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About Precision State Vectors 

Documents & Tools

Resources include product specification documents, dataset citation information for scientists using Sentinel-1 synthetic aperture radar (SAR) data, and references for relevant scientific literature.

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With ongoing, all-weather, day-and-night, global Earth data, the Sentinel-1 mission facilitates monitoring and mapping of sea ice, oil-spills, land-surface motion, humanitarian crises, and more.

NASA's provision of the complete ESA Sentinel-1 synthetic aperture radar (SAR) data archive through the ASF DAAC is by agreement between the U.S. State Department and the European Commission (EC). As part of the Earth-observation Copernicus program, the Sentinel mission will provide scientists with accurate, timely, and easily accessible information to help shape the future of our planet. Content on ASF's Sentinel web pages is adapted from the ESA Sentinel-1 website.

    Get SAR Data

    Get SAR Data

    Select and download SAR data online using Vertex.

    Use the ASF API for downloading SAR data via a command line.