NASA's Goddard Space Flight Center is seeking to award a sole-source contract modification for the refurbishment of the Advanced Technology Microwave Sounder (ATMS) Engineering Development Unit (EDU) as part of the Joint Polar Satellite System (JPSS). The objective of this procurement is to enhance the ATMS EDU to a Mission Class D flight instrument level, which will serve as a contingency for JPSS missions and support a demonstration mission for NOAA's future Low Earth Orbit (LEO) program. This refurbishment is critical for developing performance-based requirements for future competitive acquisitions in the LEO program, with Northrop Grumman being the only qualified vendor due to its unique expertise and proprietary design of the ATMS EDU. Interested parties can contact Bruce Tsai at Bruce.B.Tsai@nasa.gov or call 240-684-0428 for further information regarding this opportunity.