Education

• Ph.D., 2007, Astronomy, University of Virginia
• M.S., 2001, Astronomy, University of Virginia
• B.S., 1990, Physics, Rensselaer Polytechnic Institute

Professional Experience

• Kinnear Chair (Visiting Distinguished Professor), US Naval Academy, 2021–
• Chief, Software Products Division, US Naval Observatory, 2010–2021
• Astronomer, US Naval Observatory, 2007–2010
• Visiting Assistant Professor, Hampden-Sydney College, 2006–2007
• Systems Engineer, Litton Marine Systems, 1998–2000
• Systems Engineer, Lockheed-Martin Missiles and Space, 1996–1997
• Computer Systems Engineer, Virginia Employment Commission, 1995–1996

Research Interests

Although my dissertation focused on completing the census of our Solar Neighborhood, my current research develops practical astronomical solutions to operational problems. I am also curious about how we know what we know and the development of science over millennia.

• Astrometry
• Celestial Navigation
• Illuminance
• History of Astronomy