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About PNT

What is PNT?

"PNT" stands for Positioning, Navigation, and Timing. PNT is a combination of three distinct, constituent capabilities:

  • Positioning, the ability to accurately and precisely determine one's location and orientation two dimensionally (or three dimensionally when required) referenced to a standard geodetic system (such as World Geodetic System 1984, or WGS84);
  • Navigation, the ability to determine current and desired position (relative or absolute) and apply corrections to course, orientation, and speed to attain a desired position anywhere around the world, from sub-surface to surface and from surface to space; and
  • Timing, the ability to acquire and maintain accurate and precise time from a standard (Coordinated Universal Time, or UTC), anywhere in the world and within user-defined timeliness parameters. Timing includes time transfer.

Contact Us

RITA Office of Positioning, Navigation and Timing

Karen L. Van Dyke
Director, RITA Office of Positioning, Navigation, and Timing (PNT)
Phone Number: (202) 366-3180
Email: Karen.VanDyke@dot.gov

James A. Arnold
DOT Spectrum Lead
Phone Number: (202) 366-8422
Email: James.A.Arnold@dot.gov

Elliott L. Baskerville
Electronics Engineer
Phone Number: (202) 366-5284
Email: elliott.baskerville@dot.gov

The National Coordination Office (NCO) for Space-Based Positioning, Navigation and Timing

Jan Brecht-Clark
Director, National Coordination Office for Space-Based Positioning, Navigation and Timing
Phone Number: (202) 482-4844
Email: Jan.Brecht-Clark@pnt.gov