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El Segundo CA (SPX) Jan 04, 2007 The National Polar-orbiting Operational Environmental Satellite System (NPOESS) achieved a major milestone with the delivery of an advanced sensor engineering development unit by Raytheon Company. Raytheon is a teammate with and subcontractor to Northrop Grumman Corp. on NPOESS, the next-generation, low-earth-orbiting environmental system of satellites, sensors, ground control technology, and a data processing and dissemination network. Raytheon Space and Airborne Systems delivered the Visible Infrared Imaging Radiometer Suite (VIIRS) unit to Ball Aerospace and Technology Co. for integration and testing on the NPOESS Preparatory Project spacecraft. The delivery, which marks the culmination of an intensive effort to design and test the complex sensor, enables the start of system-level testing and risk reduction. The tests will verify the mechanical and electrical interfaces of the VIIRS unit and its compatibility with the preparatory spacecraft's state-of- the-art data network. Along with other planned instruments, the VIIRS unit will also be part of a compatibility test that involves commanding the preparatory spacecraft and sensors from the ground station at the National Oceanic and Atmospheric Agency's satellite operations facility. "Delivery of this next-generation sensor is a significant step toward ensuring early access to critical data and reducing the risks incurred while current systems transition to NPOESS," said Jon Jones, president of Raytheon Space and Airborne Systems. VIIRS is one of four sensors that will fly on NPOESS Preparatory Project spacecraft. The multi-spectral instrument will collect visible/infrared and radiometric data on such atmospheric features as clouds, earth radiation, and sea color and surface temperature. The preparatory spacecraft is the precursor to NPOESS and will provide technical risk reduction and data continuity between NASA's scientific Earth Observing System satellites Terra, Aqua and Aura, and the operational NPOESS system. Community Email This Article Comment On This Article Related Links Raytheon Making money out of watching earth from space today Earth Observation News - Suppiliers, Technology and Application
Northrop Grumman To Develop System Requirements For USAF Alternate Infrared Sat System
Redondo Beach CA (SPX) Jan 04, 2007Northrop Grumman will develop system definition requirements for the U.S. Air Force's Alternate Infrared Satellite System (AIRSS) that would provide uninterrupted space-based early missile detection. |
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