1. P.CAPIRCIO - CDS/D/CPS/SSS
GALILEO PRESENTATION
P.CAPIRCIO - CDS/D/CPS/SSS

2. INTRODUCTION
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GALILEO : Europe’s own global navigation satellite system:
25 EU member-states
3 non-EU participants (Switzerland, Norway, Canada)
+ China, Israel
(Ukraine & India expected soon)
Highly accurate
Dual frequencies as standard
Down to meter range precision
Guaranteed service
90% probability to have At least 4 satellites in sight
Real time positioning under all but the most extreme circumstances is expected
users informed of satellite failures
Suitable for safety critical application
under civilian control
Public-Private Partnership
Inter-operable with GPS and GLONASS

3. New SPACE SEGMENT 30 satellites (27 ops + 3 active spares)
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30 satellites (27 ops + 3 active spares)
23616 km above the Earth
MEO: Medium Earth Orbit
14 hours Earth orbit
Inclination of orbital planes is 56°
Good coverage expected even at latitudes up to 75°N
2 Atomic clocks onboard:
1 Rubidium
1 Passive Hydrogen Maser (PHM)
New

4. OPERATIONAL ORGANIZATION
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Galileo headquarters
Administrative & market development
Toulouse (France)
Overall Management leadership:
Performance monitoring and operations security
UK (Inmarsat)
2 Galileo Control Centres (GCC):
Munich (Germany)
Fucino (Italy)
Backup control centers & Galileo safety-critical application facilities
Spain

5. CONTROL SEGMENT 2 Galileo Control Centres (GCC)
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2 Galileo Control Centres (GCC)
Use the data of the GSS
Compute the integrity information
Synchronize the time signal of satellites
20 Galileo Sensor Stations (GSS):
Provide data to GCC
Redundant communication network
15 Up-link stations
5 S-band
10 C-band
Installed around the globe
Exchange of data between GCC and satellites

6. GALILEO SERVICES (1/3) Open Service (OS) Safety of Life Service (SoL)
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Open Service (OS)
free of user charge
Precision:
Mono-frequency precision: H: 15m; V= 35m
Double-frequency precision: H= 4m; V=8m
No integrity signal provided
Safety of Life Service (SoL)
Double or Tri-frequencies
OS Double-frequency performances
Timely warnings about accuracy (integrity signal)
Precision: H=12m; V=20m
Time To Alarm: 6 sec
Contractual commitment
Dedicated receivers required

7. GALILEO SERVICES (2/3) Public Regulated Service (PRS)
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Public Regulated Service (PRS)
Controlled access based on encrypted ranging codes and data:
Precision: H=6.5m; V=12m
Time To Alarm: 10 sec (integrity signal)
Independent signal from other services
Dedicated to public safety and security organization:
Police
Fire department
Customs agencies
Military use not approved by EU

8. GALILEO SERVICES (3/3) Commercial Service (CS)
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Commercial Service (CS)
Chargeable to users
Tri-frequencies
Encrypted signals
OS + Provides a limited broadcasting capacity for messages from service centres to users (in the order of 500 bits per second)
For integration into communication systems
Search and Rescue Service (SAR)
Transponder listening distress signals
Signal distress amplification and frequency switch
broadcast globally the alert messages received from distress emitting beacons.
Enhance performances of the international COSPAS-SARSAT Search and Rescue system.

9. RADIO FREQUENCIES ALLOCATION
10 GALILEO SIGNALS
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SAR downlink
Carriers frequencies
SAR transponder
MHz
MHz
MHz
MHz
406 MHz
1544 MHz
GPS L5
Mhz
(Block IIF)
(2007)
GPS L2
Mhz
GPS L1
Mhz
GLONASS L1
1598 to 1607 Mhz
GLONASS L3 (2008)
1198 to 1208 Mhz
(1) Code
+ Nav data
(5) PRS Code
+ PRS data
(6) Code
+ CS data
(3) Code
+ Nav data + integrity
+ SAR data broadcat
(9) Code
+ Nav data + integrity
+ SAR data broadcat
(8) PRS Code
+ PRS data
(2) Code only
(4) Code only
(10) Code only
(7) Code only

10. Annual operating cost: 220 Millions Euros:
GALILEO PROGRAM
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Development and validation phase ( ):
Consolidation of Mission Requirements
Development of satellites and ground based components
In orbit Validation (IOV) Phase 1 –
GIOVE-A & GIOVE-B demonstrators
Actual start in 2006 January
Deployment phase ( )
In orbit Validation (IOV) Phase 2
4 first operational satellites
Construction & launch of the 26 remaining satellites
Installation of the complete ground segment
Commercial operational phase (from 2010)
1.1 Billion Euros:
ESA/EU founded
2 Billions Euros:
PPP founded
Annual operating cost: 220 Millions Euros:
PPP founded

11. GIOVE-A 2005 December 28th: GIOVE-A placed in orbit
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2005 December 28th: GIOVE-A placed in orbit
by Soyuz–Fregat rocket operated by Starsem
From Baikonour Cosmodrome
2006 January 10th : End of Commissioning phase
Deployment of solar array panels
Uploading of computer software
Placing satellite in sun acquisition mode
Functional checks
Put the satellite in Earth pointing attitude
Driven by:
SSTL: Surrey Satellite Technology Ltd (UK / Guidford)
With ground stations deployed at:
RAL (UK), Bangalore (India), Kuala Lumpur (Malaysia)
2006 January 12th: First GALILEO signals transmitted
Analysed by
Chilbolton Observatory (UK)
ESA Station (Belgium)

12. GIOVE two years experimentation
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GIOVE-A :
Built by SSTL (UK)
2 redundant Rubidium clocks (Temex Switzerland)
Signal generation units (Alcatel Alenia Italy & SSTL UK)
E2, L1, E1, E5 frequencies
Characterise the radiation environment
GIOVE-B :
Expected launch in spring 2006
Larger & more advanced
Built by Galileo Industry (Germany)
1 Rubidium + 1 PHM clocks