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Earth Topics (Applications)
  • Land
  • Topography/Mapping



  • Snow and Ice
  • Sea Ice

    Snow and Ice

  • Natural Disasters
  • Oil Slick

  • Ocean and Coast
  • Ocean Currents and Topography

    Ocean Waves

    Coastal Geomorphology

  • Water
  • Water Management

    Instrument type
    Date of Launch:
    1 March 2002
    Mission Status:
    Out of service since May 2012 
    Orbit Height:
    800 km 
    Orbit type:
    Swath Width:
    5 - 1150 km
    ASAR Wide Swath Mode
    (5462) recent views
    Last update: 14 December 2016

    The WS Mode Level 0 product consists of time-ordered AISPs collected while the instrument is in WS Mode. The echo samples in the AISPs have been compressed to 4 bits/sample using FBAQ. This is a high-rate, wide swath (ScanSAR) mode so data is only acquired for partial orbit segments and is composed of data from five image swaths (SS1 to SS5). The Level 0 product is produced systematically for all data acquired within this mode.

    The objective of this product is to offer Level 0 data for possible images processing on another processing site. It includes mandatory information for SAR processing.

    Data Size: 400 km across track x 400 km along track

    Data Set Specifications
    Spatial coverage: 90 N, 90 S, 180 W, 180 E
    Temporal coverage: 2002-10-28 - 2012-04-08
    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 information on access and use of the On-The-Fly service please refer to the OTF FAQ page and the news of 15 December 2016.

    Dataset available on EO CAT

    Terms & Conditions applicable
    Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
    Auxiliary data
    ASAR Auxiliary Data
    Available via SPPA


    ASAR Products Specification - Revision C


    ASA_WS_0P File Structure


    Envisat ASAR Science and Applications


    ASAR Product Handbook


    More ASAR Documents