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News > Fourth Anniversary of First Galileo Launch

Fourth Anniversary of First Galileo Launch

  29/12/2009
Surrey Satellite Technology Ltd (SSTL) is celebrating the 4th anniversary of the launch of its historic GIOVE-A satellite - the first step in Europe's visionary Galileo satellite navigation programme - on 28th December 2005. During the past 4 years, SSTL and GIOVE-A have contributed to the testing and validation of technologies vital to the now imminent operational constellation of satellites. The 660kg GIOVE-A satellite was built by SSTL for ESA in just 30 months at a cost of just EUR28M.

GIOVE-A was the first part of the in-orbit validation programme for Galileo, broadcasting the first signal to successfully secure the critical Galileo frequency filing with the International Telecommunications Union (ITU) at 17:25 GMT on the 12th January 2006. This was a significant achievement for SSTL having commissioned the necessary systems to achieve this broadcast in just three weeks.

 

On the 2nd May 2007 GIOVE-A successfully transmitted the first Galileo navigation message from space, containing the information needed by users' receivers to calculate their position using the future Galileo satellite navigation service. These signals have since been used for signal quality testing and for equipment manufacturers and the scientific community to validate prototype Galileo receivers. Throughout the past 4 years, the satellite has provided valuable data about the Medium Earth Orbit which the Galileo constellation will occupy, helping to characterise the radiation environment and validating subsystems such as an atomic clock and the Galileo signal broadcasting payload.


In July and August this year, GIOVE-A was gradually moved to a higher orbit to ensure that it does not cross the operational Galileo constellation's orbits when the first operation satellites are launched in 2012. The satellite has been in orbit for 21 months beyond its original 27 month mission design life and continues to provide critical data to all of the ground users experimenting with Galileo navigation signals
SSTL, together with its partner OHB-System of Bremen, Germany form the core team of one of the two consortia bidding for the operational satellites. The final proposal was delivered to ESA in November and the outcome of the evaluation process is awaited. To help improve the overall schedule the team was authorised by the EC and ESA to initiate the procurement of long lead items for the full system earlier this year. The British space pioneer looks forward to continued success supporting the European Space Agency (ESA) and the EC with the expertise it has gained and its cost effective and reliable approach to satellite and subsystem design and manufacture.


SSTL CEO Dr. Matt Perkins commented, "SSTL is proud of its involvement with the Galileo programme and the continuing success of GIOVE-A. This mission has clearly demonstrated the effectiveness of SSTL's small satellite approach for the delivery of operational missions."

 



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Read more about:  navigation  Galileo  satellite 
Supplier: Surrey Satellite Technology Ltd (SSTL)

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