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- [Source: ESA GOCE Home page, http://www.esa.int/esaLP/ESAYEK1VMOC_LPgoce_0.html ] Launched on 17 March 2009 - End of mission 10 November 2013, ESA's Gravity field and steady-state Ocean Circulation Explorer (GOCE) was developed to bring about a whole new level of understanding of one of Earth's most fundamental forces of nature – the gravity field. Dubbed the 'Formula 1' of satellites, this sleek high-tech gravity satellite embodies many firsts in its design and use of new technology in space to map Earth's gravity field in unprecedented detail. As the most advanced gravity space mission to date, GOCE will realise a broad range of fascinating new possibilities for oceanography, solid Earth physics, geodesy and sea-level research, and significantly contribute to furthering our understanding of climate change. Although invisible, gravity is a complex force of nature that has an immeasurable impact on our everyday lives. It is often assumed that the force of gravity on the surface of the Earth has a constant value, but in fact the value of 'g' varies subtly from place to place. These variations are due to a number of factors such as the rotation of the Earth, the position of mountains and ocean trenches and variations in density of the Earth's interior. Over its life of about 20 months, GOCE will map these global variations in the gravity field with extreme detail and accuracy. This will result in a unique model of the 'geoid', which is the surface of equal gravitational potential defined by the gravity field – crucial for deriving accurate measurements of ocean circulation and sea-level change, both of which are affected by climate change. GOCE-derived data are also much needed to understand more about processes occurring inside the Earth and for use in practical applications such as surveying and levelling. Group: Platform_Details Entry_ID: GOCE Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: Earth Explorers Short_Name: GOCE Long_Name: Gravity Field and Steady-State Ocean Circulation Explorer End_Group Group: Platform_Associated_Instruments Short_Name: LRR Short_Name: EGG Short_Name: SSTI End_Group Group: Orbit Orbit_Altitude: 250 km (Hibernation 270 km) Orbit_Inclination: 96.7° Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous End_Group Creation_Date: 2009-05-15 Online_Resource: http://www.esa.int/esaLP/LPgoce.html Online_Resource: http://ilrs.gsfc.nasa.gov/satellite_missions/list_of_satellites/goce_general.html Group: Platform_Logistics Launch_Date: 2009-03-17 Launch_Site: Plesetsk Cosmodrome, Russia Design_Life: 20 months Primary_Sponsor: ESA End_Group End_Group
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