Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991
Find Sentinel-1 DataData Feeds

The two tables below offer links and descriptions for key Sentinel-1 documents and tools.


Vertex bulk download instructions, PC and MacHow to bulk download using Vertex.
Bulk download instructions for using a Python scriptHow to bulk download on the command line using a Python script.
Product Specification Document, ASFDefines the ISO-compliant XML metadata for ESA's Sentinel-­1A data. 
Sentinel-1 SAR User Guide IntroductionHigh-level description of instrument modes and products. Also introduction to relevant application areas, information on data distribution, product formatting, and software tools available from ESA.
Sentinel-1 Technical GuideCovers an in-depth description of the mission's products and algorithms as well as details of the SAR instrument and its performance.
Sentinel High Level Observation Plan, Issue 2, Revision 1Provides the top-level operations plan of the Sentinel missions, including space and ground segments.
Sentinels POD Service File Format SpecificationsUseful for InSAR. Users who consult this document may also want Precision State Vectors, available from ASF from 3 September 2015.
Sentinel Document LibraryThe full document library is available on the ESA website.


Sentinel-1 Toolbox (S1TBX)Processing tools, data product readers and writers, and a display and analysis application to support the large archive of data from ESA SAR missions, including Sentinel-1, ERS-1 and -2, and Envisat, as well as third-party SAR data from ALOS PALSAR, TerraSAR-X, COSMO-SkyMed and RADARSAT-2. The toolbox includes tutorials, also posted here on the ASF website, in the form of documents and videos.
ESA Sentinel App, for iOS in App Store and Android on Google Play.Powerful visualization of Sentinel product availability. Track the satellites in real time over a 3D globe, see the last and next time they have been and will be over the user's location, and more.
PolSARproThe Polarimetric SAR Data Processing and Educational Tool facilitates the accessibility and exploitation of multi-polarised SAR datasets. A wide range of tutorials and comprehensive documentation provides a grounding in polarimetry and polarimetric interferometry necessary to stimulate research and development of scientific applications; the toolbox of processing functions offers users the capability to implement them.
Other ToolsOther tools include a radar altimetry toolbox (BRAT), a data browser capable of exploring many product types in their native form (Derby), and more.

Content on ASF's Sentinel web pages is adapted from the European Space Agency(ESA) Sentinel 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.