Official U.S. government information about the
Global Positioning System (GPS) and related topics
National Space-Based Positioning, Navigation, and Timing
Advisory Board
Membership, 2021-2023
All Advisory Board members were appointed to serve as either Special Government Employees (SGE's) or Representatives. SGE's and Representatives abide by different standards of ethical conduct.
Special Government Employees
SGE's are experts from industry or academia who temporarily receive federal employee status during Advisory Board meetings.
- Thad Allen (Chairman), Booz Allen Hamilton
- John Stenbit (Deputy Chairman - until 2022), former Assistant Secretary of Defense
- Bradford Parkinson (1st Vice Chair), Stanford University
- James E. Geringer (2nd Vice Chair), ESRI
- Penina Axelrad (until 2023), University of Colorado
- John Betz, MITRE
- Scott Burgett, Garmin International
- Joseph D. Burns, The Airo Group
- Bryan Chan (added Nov 2023), Xona Space Systems Inc.
- Patrick Diamond, Diamond Consulting
- Dorota A. Grejner-Brzezinska, The Ohio State University
- Michael Hamel, Former Commander, Space and Missile Systems Center
- Larry James, Jet Propulsion Laboratory
- Vahid Madani, GridTology
- Jade Morton, University of Colorado
- Timothy A. Murphy, Boeing
- Tom Powell, Aerospace Corporation
- Eileen Reilly, Global Train Services
- Logan Scott (added Nov 2023), Logan Scott Consulting
- William Shelton (added Nov 2023), Shelton Consulting Inc.
- T. Russell Shields, Ygomi LLC
- Gary W. Thompson, North Carolina Geodetic Survey
- Frank van Diggelen, Google
- Todd Walter, Stanford University
- Gregory D. Winfree, Texas A&M
Representatives
Representatives are individuals designated to speak on behalf of particular interest groups.
- Sonia Maria Alves Costa (until 2022), Brazilian Institute of Geography and Statistics (Brazil)
- Renato Filjar, University of Rijeka (Croatia)
- Dana Goward, Resilient Navigation and Timing Foundation
- J. David Grossman, Consumer Technology Association
- Matt Higgins, International GNSS Society (Australia)
- Terry Moore, University of Nottingham (UK)
- Jeffrey N. Shane, International Air Transportation Association
Executive Director
The membership of the Advisory Board is administered by a designated federal officer appointed by the NASA Administrator:
- James J. Miller, Executive Director
Subject Matter Experts
- Martin Faga (until Nov 2023), former CEO, The MITRE Corporation
- Kirk Lewis, Institute for Defense Analyses (IDA)
- Brian Ramsay (until Nov 2021), The MITRE Corporation
