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    ESA > Our Activities > Observing the Earth

    Envisat: satellite facts

    Launch 1 March 2002 (CET)
    Launcher Ariane 5
    Launch mass 8200 kg
    Payload mass (the instruments) 2050 kg
    Planned mission length 5 years
    Number of instruments 10
    Orbit Sun synchronous,  altitude 800 km
    Inclination 98 degrees
    Time for one orbit 101 minutes
    Cycle 35 day repeat, though many of Envisat’s instruments observe a wide swath of Earth and so observe the whole planet every few days.
    Cost About 2 billion Euros
    Main contributors Austria, Belgium, Canada, Denmark, France, Finland, Germany, Italy, Norway, Spain, Sweden, Switzerland, The Netherlands and the United Kingdom

    Last update: 23 September 2004

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