Critical instrument for NOAA’s Joint Polar Satellite System enters integrated test cycle
EL SEGUNDO CA, USA — /PRNewswire/ –??Raytheon Company has manufactured and integrated all required subassemblies in completion of a major milestone for its second Visible Infrared Imaging Radiometer Suite, which will fly on the National Oceanic and Atmospheric Administration’s Joint Polar Satellite System-1 spacecraft.
The integrated sensor is now entering testing, on track for delivery in 2015.
“The Raytheon team continues to make steady progress on the second VIIRS instrument, in keeping with our commitment to deliver the completed sensor in 2015,” said Bill Hart, vice president of Space Systems for Raytheon’s Space and Airborne Systems business.
The testing cycle will include two phases. Ambient testing, which began in November, will confirm system-wide mechanical functioning, proper optical measurement of external phenomena and the ability of the electronics module to command the sensor via flight software in a lab at room temperature.
The sensor will then move directly into environmental testing, which simulates conditions during launch and in space, and is the final evaluation before being cleared for customer delivery.
The first Raytheon-built VIIRS is currently flying on the NOAA/NASA Suomi NPP spacecraft, which serves as the precursor to the next generation weather and environmental forecasting Joint Polar Satellite System. The second VIIRS is scheduled to launch on board the JPSS-1 satellite mission in 2017. NASA is developing and acquiring the JPSS-1 mission for NOAA.
Raytheon Company, with 2012 sales of $24 billion and 68,000 employees worldwide, is a technology and innovation leader specializing in defense, security and civil markets throughout the world. With a history of innovation spanning 91 years, Raytheon provides state-of-the-art electronics, mission systems integration and other capabilities in the areas of sensing; effects; and command, control, communications and intelligence systems; as well as a broad range of mission support services. Raytheon is headquartered in Waltham, Mass.
SOURCE Raytheon Company
About VIIRIS (Source: www.jpss.noaa.gov/instruments_interactive.html)
“VIIRS is the Visible Infrared Imaging Radiometer Suite. VIIRS combines the radiometric accuracy of the Advanced Very High Resolution Radiometer (AVHRR), which is currently flown on the NOAA polar orbiters with the high spatial resolution (0.56 km) of the Operational Linescan System (OLS) flown on DMSP. VIIRS provides imagery of clouds under sunlit conditions in about a dozen bands, and provides coverage in a number of infrared bands for night and day cloud imaging applications.
“In fact, it was the VIIRS??? Day/Night Band sensor that captured the widely popular and beautiful ???Earth at Night??? Black Marble image [PDF].
“VIIRS features multi-band imaging capabilities to support the acquisition of high-resolution atmospheric imagery and generation of a variety of applied products, including visible and infrared imaging of hurricanes and detection of fires, smoke and atmospheric aerosols.
“VIIRS also provides capabilities to produce higher-resolution and more accurate measurements of sea surface temperature than currently available from the heritage AVHRR instrument on POES, as well as provides an operational capability for ocean-color observations and a variety of derived ocean-color products.
“The VIIRS instrument is developed by Raytheon Company, El Segundo, California.”