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European weather satellite launch delayed for weeks

Europe's first polar-orbiting weather satellite, MetOp, will be grounded for several weeks as workers inspect its launcher for problems

The launch of a European climate-monitoring satellite has been delayed for 鈥渟everal weeks鈥 pending technical checks on its Soyuz-2 launcher, a European space official said on Thursday.

Livia Briese, a spokesperson for the European Organisation for the Exploitation of Meteorological Satellites, said the satellite would 鈥渞eturn to its hangar鈥 after technical problems scuppered plans for a launch this week.

鈥淢etOp cannot be launched tonight, nor tomorrow. A new launch date has not yet been fixed but we hope to be able to launch the satellite in the near future,鈥 said Alain Fournier-Sicre, head of the European Space Agency (ESA) in Russia. 鈥淭he launcher鈥檚 booster engines must be checked again.鈥

The satellite, MetOp-A, was to have been put in orbit on Monday from Russia鈥檚 Baikonur cosmodrome in Kazakhstan aboard a Soyuz-ST Fregat rocket, but the operation was postponed several times due to technical problems.

Finer detail

The project鈥檚 backers, which include ESA, say this and two more satellites to be launched in coming years will provide higher quality data to improve weather forecasting and climate monitoring. The three satellites cost 聙2.4 billion ($3 billion) and are designed to work in conjunction with weather satellites operated by the US National Oceanic and Atmospheric Administration.

The four-tonne MetOp-A satellite is the most complex of its kind, carrying around a dozen instruments for measuring weather patterns and transmitting data.

It is set to be Europe鈥檚 first polar-orbiting weather satellite. Unlike geostationary satellites, which hang 36,000 kilometres above a fixed point on the equator, polar-orbiting satellites circle the Earth at an altitude of about 800km.

Their lower altitude allows them to observe the Earth in finer detail than geostationary satellites, and their global view makes them better at producing long-term weather forecasts. Geostationary satellites are better at tracking severe storms on a minute-by-minute basis.