Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991

ERS-1 and ERS-2, Free and Open

NASA's provision (ASF holds a subset of all ERS data) of the European Space Agency’s (ESA) European Remote Sensing satellites (ERS-1 and ERS–2) Synthetic Aperture Radar (SAR) data archive via the ASF DAAC is now free and open by agreement between NASA and ESA. As part of the Earth observation Heritage Data Program (LTDP+), the ERS-1 and -2 missions provide scientists with historically accurate and easily accessible information to help further understand the dynamics of our planet.

The ERS-1 and -2 archive contains data collected primarily within the ASF and the McMurdo, Antarctica, station mask. ERS-1 was active from August 1991 through March 2000. ERS-2 was active from April 1995 through September 2011. 

ASF holds a subset of all ERS data.

Acquisition coverage map showing ERS-1 data available in the ASF Archive    Acquisition coverage map showing ERS-2 data available in the ASF Archive

Coverage maps showing ERS-1 and ERS-2 data available in the ASF Archive. ASF holds a subset of ERS data.

A concise summary of information about ERS products and formats is available on the ERS-1 and ERS-2 dataset pages.
To learn more about the ERS missions, please visit the European Space Agency's ERS page.

For access, users need to log in and agree to terms of the updated ASF DAAC data use agreement. For help, please follow our illustrated instructions.

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.