u.s. space-based positioning, navigation, and timing policy and program update
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U.S. Space-Based Positioning, Navigation, and Timing Policy and Program Update. The Third Annual European Defence Geospatial Intelligence Conference (DGI 2007) London 24 January 2007. Robert Crane, Senior Advisor U.S. National Coordination Office for - PowerPoint PPT PresentationTRANSCRIPT
U.S. Space-Based Positioning, Navigation, and Timing Policy
and Program UpdateThe Third Annual European Defence
Geospatial Intelligence Conference (DGI 2007)
London 24 January 2007
Robert Crane, Senior AdvisorU.S. National Coordination Office for
Space-Based Positioning, Navigation, and Timing (PNT)
2DGI 2007 Europe24 January 2007
Overview
• Current Constellation & Performance
• Modernization Plans
• International Cooperation
• U.S. Space-Based PNT Policy
• Summary
3DGI 2007 Europe24 January 2007
Current Constellation
• 15 Block II/IIA satellites operational• 12 Block IIR satellites operational
– Modernizing 6 remaining Block IIR satellites• 3 Block IIR-M satellites operational
– Transmitting new second civil signal (L2C)• Continuously assessing constellation health
to determine launch need– New IIR-M satellite launched – Nov 06– Next launch: Summer 2007
• Global GPS civil service performance commitment met continuously since 1993
• System Performance Far Exceeds Current Standard
30 Operational Satellites (Baseline Constellation: 24)
30 Operational Satellites (Baseline Constellation: 24)
4DGI 2007 Europe24 January 2007
U.S. Monitoring Sites
Tahiti
Alaska
Austin, TX
St. Louis, MO
USNO
South Africa
Bahrain
United Kingdom
Australia
New Zealand
Korea
Ecuador
Argentina
GPS Monitor Stations NGA Site (11) (8 on-line with MCS)
NGA Test Site (2) USAF Site (6)
Hawaii
ColoradoSprings
Ascension Diego Garcia
Kwajalein
Cape Canaveral
5DGI 2007 Europe24 January 2007
Benefits of GPS Modernization
• System-wide service improvements in:
– Accuracy
– Availability
– Integrity
– Reliability
• Backward compatibility
• Robustness against interference
• Improved indoor, mobile and urban use
• Interoperability with other GNSS constellations
6DGI 2007 Europe24 January 2007
GPS III
• Next-generation satellite bus needed to accommodate increasing power requirements
• Revised acquisition strategy:– Development approach to reduce risk, increase flexibility
– Separate contracts for space and ground segments
• Civil benefits:– Provides operational capability for L2C and L5
• In combination with GPS IIR-M and IIF satellites
– Delivers L1C for interoperability with Galileo, QZSS
– Significant increase in system accuracy
– Improved availability of accuracy with integrity
7DGI 2007 Europe24 January 2007
U.S. International Cooperation
• Formal cooperative arrangements with Europe, Russia and Japan, since 1996
– To ensure compatibility (non-interference) and interoperability with foreign systems
– To maintain and promote a level playing field in the global market
• Ongoing efforts with Australia, India, Brazil and others
• Multilateral cooperation established through International Committee on GNSS
– As well as ICAO, IMO, and NATO
8DGI 2007 Europe24 January 2007
• First “U.S. GPS Policy” – 1996
• U.S. Space-Based Positioning, Navigation and Timing Policy – Signed on December 8, 2004
– emerging national and international markets for GPS and related applications
– dependence and reliance on space-based PNT services
– a global utility
U.S. Policy
9DGI 2007 Europe24 January 2007
• Updates USG position while retaining principles of previous policy
• Provides framework for decision makers
• Improves ability to coordinate efforts across the various agencies of the USG
• Facilitates dialogue among stakeholders
• Promotes common standards
2004 U.S. Space-Based PNT Policy
10DGI 2007 Europe24 January 2007
Renews USG commitment for —
– Uninterrupted availability of PNT services
– Continuous improvement of civil and military performance of space-based PNT
– Interference resistance and denial of hostile use of service
– Providing world class service, free of direct user fees
– Compatibility and Interoperability with international systems
2004 U.S. Space-Based PNTPolicy Summary
11DGI 2007 Europe24 January 2007
• National Space-Based PNT Executive Committee established in 2004 U.S. Policy
– Chaired by Deputy Secretaries of Defense and Transportation
– Membership includes: State, Commerce, Homeland Security, JCS and NASA
– Executive Committee met four times in 2006
• Next meeting Spring 2007
– Supported by a new National Coordination Office
• National Coordination Office (NCO) was established with staff from each member agency
– Director, Deputy Director, and 6 staff
National Space-Based PNT Executive Committee
12DGI 2007 Europe24 January 2007
Key Executive Committee Actions
• 5-Year National Space-Based PNT Plan
– Plan is in draft and FY08 program assessment is in progress
• Interference Detection and Mitigation
– Department of Homeland Security coordinating U.S. capabilities to detect and mitigate sources of interference to GPS and its augmentations
• National Space-Based PNT Architecture
– Led by DoD’s National Security Space Office and DOT’s Research and Innovative Technology Administration
13DGI 2007 Europe24 January 2007
Key Executive Committee Actions(continued)
• U.S. Space-Based PNT Advisory Board
– Conduct assessments and make recommendations to accomplish policy goals and objectives
– Membership being finalized
– Meets Spring 2007
• Outreach
14DGI 2007 Europe24 January 2007
www.PNT.gov www.GPS.gov
15DGI 2007 Europe24 January 2007
Summary
• Implementing U.S. National Space-Based PNT Policy – Coordination Office activated on 1 Nov 05
– Executive Committee meeting regularly
• U.S. policy encourages and promotes worldwide use of civil GPS and augmentations– Compatibility and Interoperability with other GNSS systems
• International coordination and cooperation is a U.S. priority– Strongly support International Committee on GNSS
• GPS performance is getting better and will continue to improve– Augmentations enable high performance today– First new GPS signal now available– Continuous improvements
16DGI 2007 Europe24 January 2007
Contact Information
Michael E. Shaw, [email protected]
Colonel Dan Jordan, USAF, Deputy [email protected]
Robert Crane, Senior [email protected]
National Coordination Office for Space-Based PNTHerbert C. Hoover Commerce Building, Room 6822
1401 Constitution Avenue, N.W.Washington, D.C. 20230Phone: (202) 482-5809
Fax: (202) 482-4429
www.PNT.gov www.GPS.gov