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Galileo signals are on air

Published by under Communications,News categories on May 20, 2008

View of Galileo system satellite constellation EADS Astrium with the Giove-B satellite, has been transmitting the highly precise Galileo signal on 7 May. An important milestone on the road to the European navigation system Galileo, has thus been attained. In the course of the ‘In-Orbit Validation’ (IOV) phase, lasting until 2010, the four navigation satellites already being built by prime contractor Astrium will be deployed in space.

The mission is going exactly according to plan. The Soyuz rocket, which was launched from Baikonur Cosmodrome at 00:16 (CEST) on 27 April, placed Giove-B in the Galileo orbit with its upper stage. The experts at the control centre in Fucino then commanded the navigation satellite into its specified operational configuration and tested its individual system functions to make sure they were still in full working order after the stress of the launch. Once the tests on Giove-B had been successfully completed, its payload was activated and the first signal was transmitted exploiting the unsurpassed accuracy of the world’s preciser clock, the S-PHM.

Giove-B demonstrates the functionality and advanced technology of European satellite navigation in the best possible way. The key components of Galileo, especially the innovative Space Passive Hydrogen Maser (S-PHM) and the upgraded signal generator, are enjoying their premiere in space on board the satellite provided by prime contractor Astrium in Ottobrunn, Germany. The navigation payload is broadcasting a high-precision Galileo signal which is now being comprehensively measured and analyzed. As well as designing and manufacturing the payload, Astrium in Portsmouth (UK) was also responsible for the development, installation and test of the Ground Satellite Control system at the operations centre in Fucino, Italy, as well as at the IOT (In Orbit Test) station in Redu, Belgium, including the antenna.

Giove-B is now already broadcasting signals that are fully representative of the Galileo* system. Over the coming weeks and months, a series of intensive tests will be carried out, in which the Galileo technology will be put through its paces in a variety of different configurations. These tests, too, will require the expert support of Astrium, as did the launch and commissioning phase, in order to confirm that the satellite is functioning perfectly, and to be able to incorporate all in-flight experiences in the production of the IOV and FOC (Fully Operational Capability) satellites. Particular attention is being given to all payload elements but specifically to the first space maser for precise time measurement and the Galileo signal generator.


  1. FRANK says on August 17th, 2008 at 04:15

    the last few nights i’ve seen a bright light (satellite)great veiw red ,green, white lights real bright what is the name i live in harpursville n.y. looking to the south east on 8/15 /08 ahead of the moon on 8/13 &14 chaseing the moon around 10-pm to 1;30pm aclear veiw befor i lost it in the tree line going outside now it’s12;15am the 17th0f aug. 2008 can anyone tell me some people thinks i’am NUT’S THEN I TELL THEM THANKS FRANK>>

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