NASA’s Leadership in Positioning, Navigation, and Timing



NASA’s national policy positions on the use of the Global Positioning System (GPS) and its augmentations for PNT and science are developed and coordinated by the SCaN Program within the Human Exploration & Operations Mission Directorate (HEOMD) at NASA Headquarters. The National Security Presidential Directive 39 (NSPD-39) tasks the NASA Administrator, in cooperation with the Secretary of Commerce, to develop and provide to the Secretary of Transportation, requirements for the use of GPS and its augmentations to support civil space systems. This presentation will cover how NASA’s leadership role in the development of the GPS and other Global Navigation Satellite Systems (GNSS) has resulted in new capabilities available for PNT in space.