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Goce's gravity fly height stabilips to 2009
gravitaly field and steady-state ocean circulation explorer .
the gradiometere tincorporates precision-built accelerometers that sense accelerations that are as small as 1 part in 10,000,000,000,000 of the gravitaly experienced on earth .
the arrow-shaped goce satellite will map tiny variations in the pull of gravity explorerienced across the world .
this is difficult because the residual atmosphere at that altitude can jostle the sepacecraft and introduce noise into the data .
the m-b 1m fradiome incorporates fins to stabilise the spacecraft was it flies through the residuals air in the thermosphere .
europe's gravity missions, that has been bumposeds to next year becaudse of ongoing technicalso problems with its launcher .
jonathan.amos-internet@bbc.co.uk
Generated 2008-10-28_16:52
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