The National Oceanic and Atmospheric Administration (NOAA) Jason Ground System (NJGS) is a consolidated next-generation ground system that will support the simultaneous operation of the OSTM/Jason-2 and Jason-3 ocean surface topography missions. The NJGS will consist of several independent subsystems for spacecraft command and control, telemetry processing, and data archiving and distribution.

To provide the additional resources necessary for supporting both missions on a single ground system, NOAA is integrating the communications infrastructure located at its remote station in Barrow, AK, with the communications infrastructure of the primary NOAA Command and Data Acquisition Station (CDAS) at Fairbanks, AK. Together, the two sites will provide a consolidated interface, allowing the NJGS to use the combined resources of both sites as a single integrated earth terminal.

This paper discusses the delivery of mission data between the two sites and through a consolidated interface to the NJGS. The paper focuses on the telemetry-over-IP (TMoIP) gateway infrastructure that provides transport capabilities across the site boundaries, as well as the mechanism through which the sites present a common interface to the other components of the ground system.