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Raytheon has achieved a significant milestone in the development of its latest Visible Infrared Imaging Radiometer Suite (VIIRS) sensor. The VIIRS instrument, which gathers global environmental data spanning visible and infrared wavelengths across land, ocean, and atmosphere, is a key component of the NASA-NOAA Joint Polar Satellite System (JPSS) series of satellites.

The final VIIRS Sensor, known as J4, has completed Thermal Vacuum tests ahead of schedule in late 2023. This successful testing ensures that the VIIRS program remains on track to deliver the final sensor for satellite integration in 2024.

According to Sandy Brown, president of Space Systems for Raytheon, the recent thermal vacuum testing on J4 was the most successful and efficient cycle in the program's history. This achievement underscores the experience and collaboration between NASA and Raytheon, facilitating seamless test execution.

NASA's Joint Polar Satellite System represents the U.S. contribution to the next generation polar-orbiting operational environmental satellite system. VIIRS, one of the instruments on JPSS, comprises 22 bands providing high radiometric accuracy and spatial resolution multispectral imagery. These images, including the unique panchromatic Day/Night band (DNB), are utilized for various purposes such as fire and air quality monitoring, agriculture monitoring, carbon modeling, flood and sea ice mapping, among others.

Raytheon has been responsible for designing, building, and delivering four VIIRS instruments since 2010, contributing significantly to environmental monitoring and scientific research.