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    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
    EOLI-SA availability
    ASAR Alternating Polarisation Mode Co-polar Level 0
    (2475) recent views
    Last update: 30 August 2016

    This data product contains time-ordered AISPs corresponding to one of the three possible polarisation combinations: HH & HV, VV & VH and HH & VV, respectively. The echo samples in the AISPs have been compressed to 4 bits/sample using FBAQ. This is a high-rate, narrow swath mode, so data is only acquired for partial orbit segments and may be from one of seven different image swaths.

    ASA_APC_0P corresponds to the polarisation combination HH/VV= H and H received/V transmit and V received. Auxiliary data include Orbit data and time correlation parameters, PCD (Noise Measurements, Calibration Pulses P1, P1a, P2, P3, Header content of Source Packet).

    Data Size: 56-100 km across track x 100 km along track

    Data Set Specifications
    Spatial coverage: 90 N, 90 S, 180 W, 180 E
    Temporal coverage: 2002-11-15 - 2012-04-08
    Processing level
    Level 0
    How to access this data

    Data is available via EOLI-SA 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 news of 30 August 2016.

    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


    Level 0 Instrument Source Packet Description


    ASA_APC_0P File Structure


    Envisat ASAR Science and Applications


    ASAR Product Handbook


    Product Quality Disclaimer


    More ASAR Documents

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    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.