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Jöern
Tjaden on
GALILEO: Galileo’s status discussed

Jöern Tjaden
Head of Technical Division,
Galileo Joint Undertaking
joern.tjaden@galileoju.com
How did the GALILEO initiative begin?
The starting point for GALILEO was the European initiative
of EGNOS. The European Geostationary Navigation Overlay
Service (EGNOS) is Europe’s first venture into satellite navigation.
EGNOS is a joint project of the European Space
Agency (ESA), the European Commission (EC) and Eurocontrol,
the European Organisation for the Safety of Air Navigation,
which is Europe’s contribution to the first stage of the
global navigation satellite system (GNSS). European Union
and ESA wanted to develop their own positioning initiatives
to provide wider services for the civilian purpose.
What is the present status of GALILEO?
Definition phase of GALILEO started in 2000 and was completed
in 2003. The project is currently in the Development
and Validation phase to be completed in 2008. However the
first test satellite has been launched in December 2005. The
second test satellite will be launched in early 2006. By 2008
GALILEO in orbit validation constellation will be functional.
The full operation of GALILEO will be achieved in 2010 with
a constellation of 30 satellites.
What is the significance of selecting the name
‘GALILEO’?
In early 1990 the Commissioner of Transport, UK had suggested
the name GALILEO for the European initiative for a
positioning system. The suggestion remains and the project
has been so named to honour the great European scientist
Galileo.
What is the future use profile for positioining systems?
Positioning systems are continually touching newer application
realms. In the future the maximum growth of application
will be observed in LBS applications, indoor navigation and
tracking applications. For instance tracking vehicles transporting
dangerous goods, road tolling applications will
become the most popular applications.
Who are the members of the industrial organization of
the Galileo project?
The prime contractor of the project is GALILEO Industries
GmbH. Others are Galileo Industries Spa, Alcatel Space, Alenia
Spazio, EADS Astrium GmbH, EADS Astrium Ltd,
Thales Navigation and Thales Communications.
What have been the key points of agreement on GNSS
between US and EU?
US and EU have agreed to adopt a common signal for
GALILEO L1 and GPS III L1 open signals (BOC(1,1), interoperable
timing and geodesy standards to facilitate the joint
use of GALILEO and GPS and broadcast of GPS/GALILEO
time offset.
There has also been an agreement of non-discrimination in
trade in satellite navigation goods and services and strong
commitment to preserve National Security
Capabilities as well as non-restrictions of access to open service
end-users.
What is the nature of international cooperation in the
GALILEO project?
Total 28 countries from EU & ESA Member States have
agreed on cooperation for the Galileo project. An Agreement
with U.S. has just concluded and an agreement is in negotiations
with Russia. International agreement has also concluded
with China and Israel. Agreements have been initialized
with India and Ukraine and mandates are expected from
Morocco, Norway, Argentina, South Korea. Some other
countries interested in the project are Malaysia, Australia,
Brazil, Japan, Mexico.
What was the objective behind the launch of another
positioning initiative?
The main objective behind the initiative was the European
Union’s aim to gain political sovereignty in the realm of positioning
systems. Whenever there is a monopoly in any sphere
of life it ultimately results in the overall system stagnation and
limitation of choice for end users. It always better to have a
wider choice with the provision of more signals.
What is the role of india in this realm in the future?
India will ultimately gain from her understanding with
GALILEO as the GALILEO project will reduce the chances of
single provider failure.
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