A sample of testimonials from users and sponsors of IGDG and its components (RTG and RTNT):

"JPL's Real Time GIPSY (RTG) software has made a significant contribution to the WAAS program."
	John Britigan WAAS Program Manager Director, Satellite Navigation and Landing Systems Raytheon (see full document)

"The complex satellite orbit models, earth tide models and other high fidelity components of RTG were essential for us to outshine the competition."
	Dr. Michael Whitehead Chief Scientist, Satloc (see full document)

"I am extremely pleased with the reliable performance of IGDG in service of the GGN and the JPL IGS data center."
	Dave Stowers Manager, NASA Global GPS Network (see full document)

"The revolutionary new technology you demonstrated with the IGDG software holds great promise for the Solid Earth and Natural Hazard Program, and probably for many other NASA programs."
	John LaBrecque, Manager Solid Earth and Natural Hazards Program Code YS, NASA (see full document)

"I believe that it is very unusual to find a software technology such as IGDG that has benefited so enormously NASA, the private sector, other government agencies, and helped enhance aviation safety for millions of people worldwide."
	Dr. Steven Lichten Manager, Navigation and Radio Metric Work Area, Telecommunication and Mission Operations Directorate (TMOD) JPL (see full document)

"The accuracy of the real-time data made available by RTG allows the possibility of real-time motion-compensation, and therefore real-time SAR, for which there would be diverse applications, such as search and rescue."
	Dr. David A. Imel Manager, AirSAR and Advanced Instrument Technology Group Radar Science and Engineering Section JPL (see full document)