GALILEO IOV Results. IWG Meeting 05 Feb 2014, New Delhi, India. Navigation solutions powered by Europe

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1 GALILEO IOV Results IWG Meeting 05 Feb 2014, New Delhi, India Navigation solutions powered by Europe

2 IOV Mission Objectives Verification before full System Deployment: Verification of Space, Ground and User components and Interfaces prior to full system deployment Navigation Processing & Message Dissemination Capabilities Analysis of System Performance with the view to refine the FOC system Signal in Space Ranging Error & User Equivalent Range Error budget Verification of Operational Procedures

3 Galileo Space Segment for IOV 3 GSAT0102 GSAT0101 GSAT0103 GSAT0104

4 Galileo Ground Segment for IOV 4 Jan Mayen GSS Svalbard ULS/GSS Kiruna TTC S. Pierre & Miquelon GSS Redu TTC(TBD) GSS/IOT Fucino GSS Kourou TTC/ULS/GSS Reunion ULS/GSS Noumea ULS/GSS Kerguelen GSS Troll GSS 12 GSS 4 ULS 3 TT&C 1 IOT

5 Galileo Ground Segment for IOV Fucino GCC-I & GSS Kourou Launch Site Kerguelen GSS ESCC ESOC Kiruna TTC ESCC CNES Noumea GSS/ULS/TTC Kourou TTC-ULS Oberpfaffenhofen GCC-D SAT MANUFATURER Redu IOT

6 IOV SCHEDULE PLANNED OUTAGE May 13 Jun 13 Jul 13 Aug 13 Sept 13 Oct 13 12/03/2013 First PVT Start IOV Campaign PHM RAFS SYS UPGRADE PHM IOV Review Satellite Availability* SIS (%) Availability* Navigation Message (%) GSAT GSAT GSAT GSAT ** 78.8** * Period: 14/05/2013 to 31/07/2013 ** Outage on 14/06/13. Resumed signal broadcast 26/06/2013, navigation message on 01/07/13 6

7 IOV Results POSITIONING PERFORMANCE 7

8 1 st Position Fix 12/03/ :00-11:00 UTC

9 Horizontal Position Error (South/North) in [m] Accuracy of 1st Position Fix at ESTEC Vertical Position Error in [m] Standalone Galileo Position Solution E1/E5a Dual Frequency Receiver 12 th March :00 11:00 UTC Horizontal Accuracy: 5.9 m (95 th Percentile) 8 6 GNOR (ESTEC, Noordwijk) Horizontal Accuracy :00-11:00 UTC 95th Percentile:5.9[m] 50th Percentile:3.1[m] Vertical Accuracy: 11 m (95 th Percentile) 4 S-N [meters] Dual Frequency E1-E5a F/NAV W-E [meters] Horizontal Position Error (West/East) in [m] Time (UTC) Position Fix established with Test User Receivers in real-time and with TGVF Reference Receivers off-line.

10 IOV Results TIMING PERFORMANCE 10

11 Galileo Timing User specs User Performance Specification Frequency Accuracy (expressed as a normalised frequency offset relative to UTC, 2 sigma, over any 24 h interval) < 3 x User UTC determination uncertainty (2 sigma) < 30 ns November 11, 2013

12 Navigation and Metrological Timekeeping Precise Timing Facility (PTF) Core System Navigation Timekeeping critical for navigation Stable and autonomous timescale Synchronisation of ground facilities Reference for satellite orbit and clock prediction Internal time tagging Metrological Timekeeping necessary for Galileo Timing Service Accurate timescale synchronised to UTC (modulo 1 second) Implementation of ITU recommendations (Legally) valid time-tagging of user position and time Timing service for specialised users Time Service Provider External November 11, 2013

13 UTC(k) and UTCpredicted vs. GST (MC) Early Results The plot shows daily average of GST(MC) offset to the national real-time realizations of UTC, named UTC(k). The offset UTC(k)-GST(MC) is measured using TWTFT and GPS CV techniques. The real time approximation of UTC named UTCapprox is the average of the five UTC(k) s predicted vs UTC. November 11, 2013

14 Conclusions: Galileo IOV works (and it works very well.!) 14 Positioning Timing Search And Rescue GUSN 23rd August - 3rd September 2013, GDOP<10 [mean GDOP = 4.5] 20 95th Percentile:7.8[m] drms:4[m] North (m) -> <- South <- West - East (m) -> Dual Frequency Positioning Accuracy (PDOP <=5): Horizontal (95%) 8 m in average Vertical (95%) 9 m in average Timing Accuracy: 10 nsec in avg 67% availability with 4 IOV S/C 96% availability after 1st FOC launch (6 S/C) Grey = 3 s/c Black = 4 s/c SAR Beacons Localisation Accuracy: Within 2 km (77% localisations) Within 5 km (95% localisations)

15 Conclusions The first position fix with Galileo was obtained on the 12 March The in-orbit Validation Campaign of Galileo was initiated in May 2013 and has been completed end of Oct 2013 Almost 1 window of about 2 hours each day during which PVT calculation based on Galileo-only is possible IOV results are very satisfactory: Ranging error < 3 m GST-UTC offset < ns UTC dissemination accuracy < ns Horizontal, Vertical positioning error < 10 m Availability and performance will increase as space and ground segment are completed The preparation for Early Services has started 15