Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991
Find RADARSAT-1 Data

RADARSAT-1 SAR

RADARSAT-1 Data


RADARSAT-1 heat maps showing data available through ASF DAAC
      Coverage map showing RADARSAT-1 data in the ASF archive

A restricted data access agreement is required to get Level 0, Level 1, or SLC data.

Dataset Description:

  • SAR - synthetic aperture radar
  • 1995 - 2008
  • Worldwide coverage, with extensive coverage of Arctic Ocean sea ice
  • Datapool contains ASF standard beam odd frames, as well as the first and last frame of each imaged swath
  • Datapool contains all Fine Beam 1 frames
Data Format:
  • CEOS - Level 0 & Level 1 framed 
  • STF - Level 0 swath

Downloadable Products:

  • Level 0  (unprocessed/raw data)
  • Level 1 (amplitude - processed images)
  • Left looking
  • Antarctica mosaics - open access

Custom Processing - Request data via the User Support Office, uso@asf.alaska.edu

  • Level 0 - swath
  • Complex (single look complex, SLC)
  • Level 1 (amplitude images - even numbered frames)

RADARSAT-1 Technical Specs

Fine ModeStandard ModeScanSAR Mode
Frequency/wavelength5.3GHz/C-band 5.6cm
PolarizationHHHHHH
Spatial Resolution8m30m50-100m
Swath Width45km100km300-500km
Off-Nadir Angle37-47°20-49°20-49°

Read more on the CSA website.

RADARSAT-1 SAR Summary

RADARSAT-1 synthetic aperture radar

RADARSAT-1, which stopped transmitting because of a technical anomaly in March 2013, was equipped with synthetic aperture radar (SAR), a powerful microwave instrument. It transmitted and received signals for capturing high quality images of the Earth night and day and in all-weather conditions. RADARSAT-1's SAR transmitted a microwave energy pulse (C-band at 5.3 GHz frequency) to Earth, and the SAR measured the amount of energy reflected back to the satellite from the Earth's surface.

The RADARSAT-1 SAR instrument was able to shape and steer its radar beam using C-band. A wide variety of beam widths were available to capture swaths of 45 to 500 kilometers, with a range of 8 to 100 meters in resolution and incidence angles of 10 to 60 degrees.


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.