1. Recent GNSS Activities at Geoscience Australia Gary Johnston, Guorong Hu, Anna Riddell Geodesy & Seismic Monitoring Branch, Geoscience Australia

2. Geodesy at GA GNSS VLBI SLR Astronomy InSAR Datum DORIS Gravity IGS GGOS UN-GGIM China Satellite Navigation Conference 2015, Xi’an, China, May 2015

3. Operation of a geodetic GNSS network 144 Geodetic quality CORS including: 13 stations in the South Pacific 4 stations in Antarctic 127 ARGN/AuScope/AGOS across Australia region 30 stations contribute to the IGS

4. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Typical ARGN/AuScope GNSS Station  NORS: Norseman, Western Australia

5. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Positioning and Regional Sea Level Change Fiji GPS CORS Station Samoa Vertical Coordinate

6. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Data products Daily RINEX data of 30s High rate (1s) real-time streams Contribute to the IGS and MGEX Upgrading to track Multi- GNSS signals including Beidou Free available for access through GA’s ftp sever, ftp://ftp.ga.gov.au/geodesy- outgoing/gnss/data / ftp://ftp.ga.gov.au/geodesy- outgoing/gnss/data /

7. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Asia-Pacific Reference Frame (APREF) As the APREF Central Bureau, Geoscience Australia is responsible for: Management of APREF CORS network of ~ 420 stations Combination of four Local Analysis Centres (LACs)’ solutions, including LAC from the Institute of Geodesy & Geophysics, Chinese Academy of Sciences.

8. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Example of APREF benefits: densification of velocity field model in Asia-Pacific and the long-term maintenance of the APREF  For the maintenance of a geodetic reference frame the following characteristics of the site velocities are critical:  magnitude  accuracy  reliability

9. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 AUSPOS – Australia’s online GPS processing service Processing Engine: Bernese GPS Software V5.0 Upgrading to Bernese V5.2

10. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 GNSS antenna calibration facility The antenna calibration facility includes: A Geo++ robotic calibration system; and An industrial robot arm (‘Kuka’)

11. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Individual calibration elevation dependent differences from the IGS type mean GNSS antenna calibration facility

12. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 GNSS-based Surface deformation monitoring

13. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 GNSS-based Surface deformation monitoring

14. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 Legal traceability of GPS

15. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 The development of Analysis Centre Software Principal concept (ACS project) SV Orbits SV Clocks Un-calibrated Signal Delays (USDs) Inter System biases Troposphere Ionosphere Daily Earth Rotation Parameters Daily/Weekly Coordinates ACS network platform products

16. China Satellite Navigation Conference 2015, Xi’an, China, May 2015 The development of Analysis Centre Software PPP PPP-AR PPP-RTK PPP user platform CRCSI Project 1.01 Principal concept (ACS project)

17. Improved Governance Ground Infrastructure Development GNSS Analysis Capability Data & Service Delivery PNT Working Group & NPI Advisory Board Government, Industry & Research Stakeholders Facilitate Standards Adoption and Data Sharing Upgrade National GNSS Ground Infrastructure Facilitate International Engagement & Collaboration Develop and Validate GNSS Products and Services (Analysis Capability) Investigate Ground and Space-Based Delivery Mitigate Vulnerabilities National Positioning Infrastructure (NPI) - Planning/Progress China Satellite Navigation Conference 2015, Xi’an, China, May 2015

18. Australian Government Positioning, Navigation & Timing Working Group (PNT-WG) Chaired by Geoscience Australia. Reports to the Space Coordination Committee (SCC). Draws together key Australian Government agencies involved in PNT to advise the SCC on the status and future of positioning in Australia. Quarterly meetings with presentations invited from industry. Key discussion points from 2014 include: Spectrum management Status and capabilities of new GNSS International engagement Hosting of GNSS ground infrastructure Engagement on NPI planning China Satellite Navigation Conference 2015, Xi’an, China, May 2015

19. Improved Governance Ground Infrastructure Development GNSS Analysis Capability Data & Service Delivery PNT Working Group & NPI Advisory Board Government, Industry & Research Stakeholders Facilitate Standards Adoption and Data Sharing Upgrade National GNSS Ground Infrastructure Facilitate International Engagement & Collaboration Develop and Validate GNSS Products and Services (Analysis Capability) Investigate Ground and Space-Based Delivery Mitigate Vulnerabilities National Positioning Infrastructure (NPI) - Planning/Progress China Satellite Navigation Conference 2015, Xi’an, China, May 2015

21. Phone: +61 2 6249 9111 Web: www.ga.gov.au Email: feedback@ga.gov.au Address: Cnr Jerrabomberra Avenue and Hindmarsh Drive, Symonston ACT 2609 Postal Address: GPO Box 378, Canberra ACT 2601 Thank you Questions?