Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991

Link to Earthdata login for downloading synthetic aperture radar (SAR) from ASF DAACFirst Step: Get an Earthdata Login Account

A NASA EOSDIS Earthdata Login account is required for downloading data from ASF. Earthdata Login accounts are easy to register for at

New users of the ASF data portal Vertex are directed to the registration page if they don't have an account. 
You will receive an email with a link for completing your registration.

Use your Earthdata Login password to download data from ASF with the Vertex interface or ASF website downloads.

  • Most datasets are offered as open access; there is no charge. You just log in and download.
  • A research agreement is required to download JERS-1 and RADARSAT-1 data. 
  • In addition, the PI must live in the U.S., but is not required to be a citizen.

Take a look at the How to Get SAR Data page to see a summary of datasets, requirements, interfaces, uses, and coverage.

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.