National Space-Based Positioning, Navigation, and Timing
Advisory Board

Membership, 2019-2021

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), former Assistant Secretary of Defense
• Bradford Parkinson (1st Vice Chair), Stanford University
• James E. Geringer (2nd Vice Chair), Environmental Systems Research Institute (ESRI)
• Penina Axelrad, University of Colorado
• John Betz, MITRE
• Scott Burgett, Garmin International
• Joseph D. Burns, Airo Drone
• Patrick Diamond, Diamond Consulting
• Dorota A. Grejner-Brzezinska, The Ohio State University
• Ronald R. Hatch (until 2019), private consultant (retired John Deere)
• Larry James, Jet Propulsion Laboratory
• Timothy A. Murphy, The Boeing Company
• T. Russell Shields, Ygomi
• Gary Thompson, North Carolina Emergency Management/Geodetic Survey
• Frank van Diggelen, Google
• Todd Walter, Stanford University

Representatives

Representatives are individuals designated to speak on behalf of particular interest groups.

• Gerhard Beutler, International Association of Geodesy (Switzerland)
• Sergio Camacho-Lara, United Nations Regional Education Center of Science and Space Technology - Latin America and Caribbean (Mexico)
• Ann Ciganer (until 2020), GPS Innovation Alliance
• Dana Goward, Resilient Navigation and Timing Foundation
• Matt Higgins, International GNSS Society (Australia)
• Terry Moore, University of Nottingham (UK)
• Refaat M. Rashad, Arab Institute of Navigation (Egypt)
• 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, former CEO, The MITRE Corporation
• Kirk Lewis, Institute for Defense Analyses (IDA)
• Tom Powell, Aerospace
• Brian Ramsay, The MITRE Corporation

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