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Astrium Delivers Galileo Satellites to ESA

August 29, 2012
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Following a successful acceptance review, Astrium, a European space company, has brought the third and fourth Galileo IOV (In-Orbit Validation) satellites to the European Space Agency (ESA) in Kourou, French Guiana. The arrival of the two satellites in Kourou on August 7 and 17 represents an important step for the European flagship program. The two satellites are to be launched aboard a Soyuz rocket from the Guiana Space Centre in Kourou. They will join the two Astrium IOV satellites already in space to complete the Galileo IOV (In Orbit Validation) configuration.

“The important, high-performance Galileo navigation system is taking concrete shape. With the successful entry into service of the first two satellites and the acceptance of the next two, Astrium has reached another important milestone,” says Evert Dudok, CEO of Astrium Satellites. “The Astrium satellites serve as a template for all other Galileo satellites built in Europe. If the launch of IOV satellites three and four goes according to plan, Astrium will have laid the foundation for the complete high-performance Galileo system. Astrium and our subsidiaries involved in the Galileo program have a 50-percent workshare in the Galileo system. We are leading the development of the Ground Control Segment, and are also involved in system activities.”

The two Galileo satellites were designed and built by a team led by Astrium GmbH in Ottobrunn, as prime contractor, who also oversaw the development and integration of the navigation payload through Astrium Ltd. in Portsmouth. The satellites were assembled and tested in Rome by Thales Alenia Space Italia, and flown to French Guiana in an Antonov An-124 cargo aircraft. The two satellites are numbers three and four of a total of four IOV satellites that Astrium is supplying for the Galileo system. Galileo is Europe’s first global satellite navigation system under civilian control. The system will supply reliable and ultra-precise positioning data worldwide.

As soon as these two satellites join the first two in orbit, the four-satellite constellation will be activated in order to validate the Galileo system design. Four is the minimum number of satellites required for ultra-precise three-dimensional positioning.

In February, Astrium also received a contract from the European Space Agency (ESA) to adapt Ariane 5 for a Galileo mission involving the simultaneous launch of four satellites.

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