GOCE

GOCE (Gravity field and steady-state Ocean Circulation Explorer) was a European Space Agency (ESA) satellite mission that aimed to provide accurate models of the Earth's gravity field and geoid. Launched in 2009, GOCE orbited the Earth at a low altitude of about 255 km, using highly sensitive instruments to measure variations in the Earth's gravity field caused by differences in the distribution of mass. The data collected by GOCE has been used to improve our understanding of ocean circulation, sea level change, and the Earth's interior structure. The mission ended in 2013 when the satellite's fuel was depleted and it re-entered the Earth's atmosphere.
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