The NASA Global Differential GPS (GDGPS) System was developed at the Jet Propulsion Laboratory (JPL) in support of NASA's demanding terrestrial, airborne, and spaceborne operations, and for other Government and commercial customers. JPL is a Division of the California Institute of Technology (Caltech), which manages the laboratory for NASA. JPL is NASA's lead center for robotic exploration of space, and is responsible for technology development and operations of many NASA missions and infrastructure.

With nearly 60 GPS engineers and scientists working in this field, JPL is one of the biggest GPS and GNSS R&D laboratories in the world, with an unparalleled track record of innovations and leadership in GPS technology and its advanced applications. End-to-end GPS expertise includes: systems, software, hardware, infrastructure, flight experiments, operations, and science

The GDGPS System is managed and operated in the Tracking Systems and Applications Section of JPL's Telecommunications Division.

Please contact us to discuss your special needs for assisted-GPS data, engineering development, technical assistance, environmental monitoring, situational assessment, positioning, or orbit determination.

Dr. Yoaz E. Bar-Sever
Manager, Global Differential GPS System
Mail Stop 238-600
Jet Propulsion Laboratory
Pasadena, CA 91109

Tel: 818-354-2665
Fax: 818-393-4965
Email: Yoaz.Bar-Sever@jpl.nasa.gov