GALILEO PRESENTATION

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GALILEO PRESENTATION

• P.CAPIRCIO - CDS/D/CPS/SSS

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INTRODUCTION

• GALILEO Europes 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

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SPACE SEGMENT

• 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
  75N
• 2 Atomic clocks onboard
• 1 Rubidium
• 1 Passive Hydrogen Maser (PHM)

• New

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OPERATIONAL ORGANIZATION

• 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

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CONTROL SEGMENT

• 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

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GALILEO SERVICES (1/3)

• Open Service (OS)
• free of user charge
• Precision
• Mono-frequency precision H 15m V 35m
• Double-frequency precision H 4m V8m
• No integrity signal provided
• Safety of Life Service (SoL)
• Double or Tri-frequencies
• OS Double-frequency performances
• Timely warnings about accuracy (integrity signal)
• Precision H12m V20m
• Time To Alarm 6 sec
• Contractual commitment
• Dedicated receivers required

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GALILEO SERVICES (2/3)

• Public Regulated Service (PRS)
• Controlled access based on encrypted ranging
  codes and data
• Precision H6.5m V12m
• 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

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GALILEO SERVICES (3/3)

• 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.

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RADIO FREQUENCIES ALLOCATION
10 GALILEO SIGNALS
SAR downlink
Carriers frequencies
SAR transponder
1176.45 MHz
1207.14 MHz
1278.75 MHz
1575.42 MHz
406 MHz
1544 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
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GALILEO PROGRAM

• Development and validation phase (2001-2008)
• 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 (2008-2010)
• 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
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GIOVE-A

• 2005 December 28th GIOVE-A placed in orbit
• by SoyuzFregat 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)

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GIOVE two years experimentation
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