ÁBHAR CARTLAINNE
22 NOLL. 2006
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Thursday 28 December will mark the first year in orbit of GIOVE-A, the first Galileo satellite, launched from Baikonur Cosmosdrome by a Soyuz launcher.
This pilot satellite is a key element of the programme, bringing the Galileo frequencies into use, testing new critical technologies and characterising the medium Earth orbit environment.
On 12 January, the anniversary of the first broadcast of European navigation signals transmitted by GIOVE-A will be celebrated.
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GIOVE-B, the second satellite for Galileo In-Orbit Validation, suffered a technical incident during its test campaign, affecting its on board computer. According to the recovery plan initiated by ESA and industry, the launch of this second Galileo test satellite is now planned by the end of 2007. This delay has no impact on the development of the operational satellites.
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GIOVE-A is being used for extensive experimentation such as calibration and testing, monitoring the in orbit performances of the specific navigation payload elements such as the atomic clocks and the signal generator, and demonstrating that Galileo signals are compatible and interoperable with GPS and GLONASS signals.
Galileo is a joint initiative of the European Commission (EC) and the European Space Agency (ESA). The EC is responsible for the political dimension and the high-level mission definition. ESA’s responsibility covers the technology development as well as design, development and in-orbit validation of the space and ground elements.
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GIOVE A transmits loud and clear
After a successful launch on 28 December 2005, GIOVE A began transmitting navigation signals on 12 January 2006. Work is currently being performed to check the quality of these signals.
With ESA’s launch of GIOVE-A three days after Christmas, one ...
With ESA’s launch of GIOVE-A three days after Christmas, one of Europe’s most ambitious technology projects began to materialise. The clocks are now ticking for the deployment of Galileo, Europe’s satellite navigation system. Since 12 January the first GIOVE satellite has been transmitting valuable navigation signals as part of the in-orbit validation of the Galileo system. Developed jointly by the European Union and ESA, Galileo is open to international cooperation. Some agreements with non-European countries have already been signed while others are in the process of being negotiated, giving Galileo a truly global dimension.
First Galileo signals transmitted by GIOVE-A
ESA PR 03-2006. The GIOVE-A satellite is in good health and started transmitting the first Galileo signals from medium Earth orbit on 12 January.
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Naisc ghaolmhara
Galileo website (European Commission)
Surrey Satellite Technology - GIOVE A
European Satellite Navigation Industries
Starsem - Soyuz launcher
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