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Earth Topics (Applications)
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  • Snow and Ice

    Instrument type
  • SAR
  • Mission
    Date of Launch:
    ERS-1 - 17 July 1991
    ERS-2 - 21 April 1995
    Mission Status:
    ERS-1 ended on March 2000 and ERS-2 September 2011 
    Orbit Height:
    782 to 785 km
    Orbit type:
    Near-circular, polar, Sun-synchronous
    Swath Width:
    5 km
    ERS-1/2 - SAR Raw Image Product
    (5951) recent views
    Last update: 10 April 2017

    This SAR Level 0 product is acquired in Image Mode. The products consist of the SAR telemetry data and are supplied as full Level 0 segments, unprocessed. It also contains all the required auxiliary data necessary for data processing.

    The product serves two main purposes:

    • For testing ERS SAR processors independently from the HDDR system
    • For users interested in full SAR data processing.
    Product characteristics
    Scene area 100 km (range - across track) x full segment length (azimuth - along track)
    Scene size 5616 samples (range) x full segment length (azimuth)
    Pixel depth 10 bits signed integer (5 bits I, 5 bits Q)
    Projection Slant range
    Data Set Specifications
    Spatial coverage: 82 N, 82 S, 180 W, 180 E
    Temporal coverage: 27-07-1991 - 04-07-2011
    Current Processor Version: PF-ERS / Envisat format
    Processing level
    Level 0
    How to access this data

    Data is available online upon submission of a Service Request for the (A)SAR On The Fly Service.

    For more details see the news article from 11 April 2017

    Terms & Conditions applicable
    Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
    Auxiliary data
    ERS-1 auxiliary data
    Available via SPPA
    ERS-2 auxiliary data
    Available via SPPA


    ERS SAR Envisat Format Product Specification


    ERS-1 SAR Sensor Performance, Products and Algorithms


    ERS-2 SAR Sensor Performance, Products and Algorithms


    Basic Envisat SAR Toolbox (BEST)


    Next ESA SAR Toolbox (NEST)


    Sentinel-1 Toolbox / Sentinel Application Platform (SNAP)


    Review of the impact of the ERS-2 Piloting Modes on the SAR Doppler Stability


    More SAR Documents

    Minimize From Delivery to Acquisition
    Minimize ESA Earth Observation Campaigns Data

    ESA has been involved in many Earth Observation campaigns over the past 25 years, from ground-based surveys, to ships at sea, aircraft and balloons in the atmosphere and the orbiting satellites in space.

    To learn more about these campaigns and available datasets from them, please see the Campaigns page.