1. Earth Sciences Sector SLIDE 1 Some current GNSS activities at GSD GEOIDE Project #31 Workshop October 2006 P. Collins F. Lahaye K. MacLeod Y. Mireault P. Tetreault M. Caissy P. Heroux

2. Earth Sciences Sector SLIDE 2 CSRS-PPP Jobs Processed Since Fall 2003

3. Earth Sciences Sector SLIDE 3 CSRS-PPP Usage StaticKinematic % Mean Length (hours) % Mean Length (hours) L111.53.31.52.6 L38010.579

4. Earth Sciences Sector SLIDE 4 CSRS-PPP, What’s Next Reporting of orthometric height (CGVD28 / HT2.0) for both static and kinematic (first week of October 2006) Multiple RINEX observation file submission (November 2006) User selected output format (UTM, GIS Shapefiles etc) Better integration with other GSD On-line applications for increased user convenience

5. Earth Sciences Sector SLIDE 5 PPP Applications (Timing) Clock estimation for receivers referenced to external stable atomic frequency source Potential alternate method of time and frequency transfer between national timing labs Allows GSD to assess the quality of models used within PPP Ocean loading model shortcoming in PPP

6. Earth Sciences Sector SLIDE 6 PPP Applications (Timing) Continuous processing allows for assessment of observation data quality at permanent GPS reception sites Average absolute pseudorange daily changes from two weeks continual processing from two seasons

7. Earth Sciences Sector SLIDE 7

8. Earth Sciences Sector SLIDE 8

9. Earth Sciences Sector SLIDE 9 Real-Time IGS Working Group Prototype Network ~60 Stations

10. Earth Sciences Sector SLIDE 10 99.7% 1.028 sec - Avg. availability and latency for ALIC, October 18 – 25, 2006 Performance Monitoring

11. Earth Sciences Sector SLIDE 11 ApplicationPurposeDeployments UdpRelay Routes data/products to analysis centres, global data centres and end users. JPL, GFZ, NRCan, ESA, GA, IEN, COSMIC RTIGSA (Archiver) Creates files based on RTIGS observation data. NRCan, BKG, UCAT, NOAA (SEC), TUV, CDDIS, KASI, GOPE RTIGSMR (Multicast Receive) Reads and decodes RTIGS data messages -- provides a framework for real-time application development. TUV (custom application for IGU quality assurance) Ashtech, Benchmark, Javad/Topcon Raw receiver data to RTIGS data messages. Optional scripts for data management. IEN, NGS, NRL, ROB, ESA RTIGS Software Tools

12. Earth Sciences Sector SLIDE 12 Satellite Observability (Actual)

13. Earth Sciences Sector SLIDE 13 Satellite Clock Geometry (Actual)

14. Earth Sciences Sector SLIDE 14 Satellite Clock Geometry (Almost)