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ASF DAAC Data Access and Tools

Data at the Alaska Satellite Facility can be accessed through Earthdata Search. ASF also offers both browser and programmatic services for accessing and downloading data. 

Access to ASF data requires an Earthdata Login account, and the ASF End User License Agreement (EULA) must be completed when logging in to Vertex for the first time.

ASF Data Discovery Services

VertexA powerful yet easy-to-use graphical interface for creating searches, refining results, and downloading SAR data from the ASF archive.
asf_searchSearch and download SAR data with just a few lines of Python. Available via PyPi and Conda, this module is ideal for Python users developing new tools.
Search APIA REST API that provides access to the ASF data archive. It supports Wget, cURL, and most programming languages.

ASF Data Processing Services

HyP3A free, on-demand cloud processing service that offers analysis-ready RTC and InSAR products from Sentinel-1 SAR data. The HyP3 service is integrated into Vertex for a seamless data discovery and processing experience. HyP3 is also available through a REST API and  Python SDK.
HyP3+This option lets you purchase processing credits as needed, avoiding the credit limit and shared processing queue of the basic HyP3 service. HyP3+ is built into the Vertex+ interface, offering a seamless search and processing experience, and is also available through an API and Python SDK.

Data at ASF DAAC

Filters
Dataset Sort descending Instrument Temporal Extent Data Format
NISAR Provisional Radar Raw Signal Calibration Data (Version 1) L-SAR, S-SAR 2026-06-16 to Present HDF5, YAML
NISAR Provisional Radar Raw Signal Science Data (Version 1) L-SAR, S-SAR 2026-06-16 to Present HDF5, XML, PDF, YAML
NISAR Provisional Range Doppler Pixel Offsets (Version 1) L-SAR, S-SAR 2026-06-16 to Present HDF5, XML, YAML, PNG, KML, CSV, PDF
NISAR Provisional Range Doppler Single Look Complex Product (Version 1) L-SAR, S-SAR 2026-06-16 to Present HDF5, XML, PNG, PDF, CSV, KML, YAML
NISAR Provisional Range Doppler Unwrapped Interferogram Product (Version 1) L-SAR, S-SAR 2026-06-16 to Present HDF5, XML, YAML, PNG, KML, CSV, PDF
NISAR Provisional Range Doppler Wrapped Interferogram Product (Version 1) L-SAR, S-SAR 2026-06-16 to Present HDF5, XML, YAML, PNG, KML, CSV, PDF
NISAR Provisional Soil Moisture (Version 1) L-SAR 2026-06-17 to Present HDF5, XML, YAML
NISAR Radar Pointing L-SAR, S-SAR 2025-08-02 to Present XML
NISAR Spacecraft Trajectory Utility File L-SAR, S-SAR 2025-07-30 to Present XML
NISAR Total Electron Content L-SAR, S-SAR 2025-08-26 to Present JSON
NISAR Urgent Response Level 1 Product L-SAR, S-SAR 2026-06-18 to Present HDF5, XML, CSV, PDF, KML, YAML, PNG
NISAR Urgent Response Level 2 Product L-SAR, S-SAR 2026-06-18 to Present HDF5, XML, CSV, PDF, KML, YAML, PNG
NISAR Urgent Response Radar Raw Signal Science Data L-SAR, S-SAR 2026-07-08 to Present HDF5, XML, PDF, YAML
OPERA Coregistered Single-Look Complex from Sentinel-1 Static Layers validated product (Version 1) C-SAR 2014-04-03 to Present HDF5, XML
OPERA Coregistered Single-Look Complex from Sentinel-1 validated product (Version 1) C-SAR 2016-07-01 to Present HDF5, XML
OPERA Radiometric Terrain Corrected SAR Backscatter from Sentinel-1 Static Layers validated product (Version 1) C-SAR 2014-04-03 to Present GeoTIFF, XML
OPERA Radiometric Terrain Corrected SAR Backscatter from Sentinel-1 validated product (Version 1) C-SAR 2016-04-14 to Present HDF5, GeoTIFF, XML
OPERA Surface Displacement from Sentinel-1 Static Layers validated product (Version 1) C-SAR 2014-04-03 to Present COG, XML, PNG
OPERA Surface Displacement from Sentinel-1 validated product (Version 1) C-SAR 2016-07-01 to Present netCDF-4, XML, PNG, Zarr
OPERA Tropospheric Correction at Zenith validated product (Version 1) 2016-01-01 to Present netCDF-4, XML, PNG
RADARSAT-1 Level 0 Product SAR 1996-02-01 to 2009-03-17
RADARSAT-1 Level 1 Product SAR 1996-02-01 to 2009-03-17
Seasat Level 1 Synthetic Aperture Radar Products SAR 1978-07-04 to 1978-10-12 GeoTIFF, HDF5, XML, KML, Text File
Sentinel-1 Interferograms C-SAR 2014-10-15 to 2023-05-28 netCDF-4, PNG, JSON
Sentinel-1 Single Look Complex (SLC) Bursts C-SAR 2014-06-15 to Present

ASF DAAC Data Tools

Filters
Tool Sort descending Description Services
ASF ArcGIS Toolbox The ASF_Tools ArcGIS Python Toolbox can be used with either ArcGIS Desktop or ArcGIS Pro, and contains tools that perform geoprocessing tasks useful for working with synthetic aperture radar (SAR) data. Processing
ASF Displacement Portal Find and utilize Observational Products for End-Users from Remote Sensing Analysis (OPERA) products distributed by ASF DAAC. Search and Discovery
ASF MapReady Terrain-correct, geocode, and apply polarimetric decompositions to multi-pol SAR data Processing
asf_search asf_search enables users to search and filter OPERA data products efficiently. Access, Search and Discovery
Convert to Vector Transform point or scene information to formats compatible with Google Earth, GIS, and other tools. Reformatting
HyP3 HyP3 is a service for processing Synthetic Aperture Radar (SAR) imagery that addresses many common issues for users of SAR data. Processing
OpenScienceLab OpenScienceLab is an ecosystem of open-source tools for data analysis provided by NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC). Analysis
OPERA Product Resources Resources related to OPERA data production and product use. Access, Downloading, Search and Discovery
RTC Stack Processor The radiometric terrain correction (RTC) stack processor tool facilitates time-series analysis of such phenomena as flooding events, deforestation, or glacier retreat. Analysis, Processing, Search and Discovery, Visualization
Vertex Vertex is a graphical search interface for finding synthetic aperture radar (SAR) data. Search and Discovery, Access, Downloading, Processing, Subsetting
SHOWING 10 OF 10

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