EUROPEAN COMMISSION Galileo The European Satellite Navigation System

EUROPEAN COMMISSION Galileo The European Satellite Navigation System Dakar, November 2003

EUROPEAN COMMISSION Galileo ‘s mission • To improve multi-modal transport infrastructure while providing global high-quality civil Position-velocity-time capability • To implement an independent GNSS • To provide interoperability • To provide enhancements and global redundancy • To support safety of life and other applications anticipating needs for value-added suppliers • To be legally accountable for the services that it supplies 2

GALILEO is a joint EC / ESA Initiative EUROPEAN COMMISSION European Commission with assuming political responsibility. . . http: //europa. eu. int/comm/energy_transport/en/gal_en. html and leading the programme development www. esa. int/navigation 3

GALILEO Joint Undertaking EUROPEAN COMMISSION Created by the EU Council decision. Founding members: ESA and EC. GALILEO Joint Undertaking is operational as of 1 September 2003 Functions: q. Supervises the EGNOS Programme and its optimal Integration in GALILEO. q. Oversee the Implementation of the GALILEO Development and Validation Phase + help prepare for the deployment and ops. Phase q. Launch through ESA a first series of satellites…. . q. Supervise the carrying out of all programs + propose adjustments q. Conclude an agreement with ESA for the development phase and make available the corresponding funds q. Help mobilise the public and private funds for the next phases (Establish business plan; Competitive tendering for Concession) 4

GALILEO Joint Undertaking EUROPEAN COMMISSION Founding Members European Community (Commission) Supervisory Board Possible Future Members European Space Agency European Investment Bank Private companies Third countries ESA Pb-Nav (ESA Member States) (EU Member States) Administrative Board Joint Undertaking Executive Committee Director Subcontracting Infrastructure (ground / space) Application development Preparation of deployment and operation 5

GALILEO Joint Undertaking EUROPEAN COMMISSION 6

EUROPEAN COMMISSION European motivation • Galileo 4 main arguments Political European independence and sovereignty Industrial politics Social Technological Better and new services for the citizens Improved safety of transport systems Environmental benefits Technological lead to European industry Explore synergy of a number of technologies Economic Global market shares Global competitiveness of all segments of the Value Chain Employment Efficiency of transport industry 7

EUROPEAN COMMISSION GALILEO ADVANTAGES • Civilian programme • Liability and Guarantees on service levels • Certification for Safety of Life • Local elements incorporated in initial design 8

GALILEO services EUROPEAN COMMISSION The Galileo satellites will provide 5 worldwide services independently: 1 -Open service. • Free of charge. • Accuracy (H: 4 m V: 8 m). • Mass market applications based on GPS-Galileo receivers. 2 -Safety of life. • Global integrity (integrity risk: 3. 5. 10 -7, VAL=20 m, HAL=12 m, Time to alarm= 6 secs). • Services guarantees. • Combined use Galileo+EGNOS. • Certification-liability. 3 -Commercial service. • Added value services with respect to the open service. • Services guarantees. • Interface with Service Providers. 4 - Public Regulated Service. • Continuity and robustness. • Services guarantees. • Public applications (police, civil protection, emergency services, …). • Critical and strategic applications (energy, telecommunications, …). 5 - Search and Rescue. • Coordinated with COSPAS-SARSAT. • Improve accuracy of locations of distress beacons. 9

EUROPEAN COMMISSION GALILEO So. L Service Level A (Aviation APV II road and train applications) Level B (Aviation En-route to NPA) Level C (Maritime applications) Dual frequency E 5 a+ L 1 or E 5 b+L 1 HAL=40 m VAL= 20 m TTA=6 seconds Integrity Risk=2. 10 -7/150 s HAL=556 m TTA=10 sec. Int. Risk=10 -7/hour HAL=25 m TTA 3 h =10 seconds Int. Risk=10 -5/3 hours Mono frequency L 1 or E 5 b Not achievable. HAL=556 m TTA=10 sec. Int. Risk=10 -7/hour Not achievable. 10

GALILEO and GPS/EGNOS together EUROPEAN COMMISSION • An alternative in case of system failure • Allow for new and complementary services In cities: “urban canyons” (buildings, trees, etc. ) • GPS in cities: 50 % availability • GALILEO + GPS in cities: 95 % availability 11

Qualitative Requirements Quantitative Requirements EUROPEAN COMMISSION GPS + EGNOS +Galileo: The civil aviation approach towards sole service. Robustness to iinterferences System failures tolerance Integrity Continuity Availability Accuracy Continuityle So vice r Availability e S Accuracy 12

Search and Rescue Services EUROPEAN COMMISSION 13

Overall architecture : physical view EUROPEAN COMMISSION Constellation - 30 satellites 11 m antenna 5 Combined Galileo from External Regional Integrity Systems (ERIS) Mission C-band Up-link (nav/integ/SAR/NRS/PRS) TT&C S-band Up-link (incl. nav degraded data) 5 Dedicated Mission Up-link Sites (global coverage) external services Service Products Facility SPF Ground Assets Control Facility GACF Operated Components Satellite Mission Control Facility SCF MCF from ERIS from S&R Key Mng. Faciliy KMF MGF OSPFs IPFs PTF to Time Service Provider Galileo Control Centre GCC 2 Galileo Control Centre GCC 1 Communications Network NAV. CHAIN INT. CHAIN B-UP CHAIN G S S ~ 29 Galileo Sensor Stations (Global Coverage) part. redundancy 14

EUROPEAN COMMISSION The Galileo Satellite Constellation Inclination 56 degrees • 30 satellites in three Medium Earth Orbit MEO planes at 23616 km altitude • 1 satellite per orbital plane is a spare • Inclination of orbital planes 56 degrees • One revolution 14 hours 4 min • Ground track repeat 10 days 15