Northrop Grumman and Lockheed Martin complete SBIRS HEO-3 payload integration test

AZUSA, Calif., 5 Oct. 2012. Northrop Grumman Corp. (NYSE:NOC), a global security company, has completed payload integration and the ambient functional test of the U.S. Air Force's space based infrared system's (SBIRS) third highly elliptical orbit (HEO-3) payload. Lockheed Martin (NYSE:LMT) is the SBIRS prime contractor, Northrop Grumman is the payload integrator.

SBIRS is a consolidated system designed to meet the United States' infrared space surveillance needs through the first two to three decades of the 21st century. The SBIRS program is meant to provide key capabilities in the areas of missile warning, missile defense and battlespace awareness. SBIRS is an integrated system of systems that will include satellites in geosynchronous orbit (GEO), sensors hosted on satellites in highly elliptical orbit (HEO), and ground-based data processing and control. Two HEO payloads and the first geosynchronous (GEO-1) satellite have already been launched.

During payload integration, the Northrop Grumman-led team verified the initial electrical functionality after conducting mechanical integration of the payload, harness checks, bond joint checks, command confirmation and primary/secondary power checks. Once the integration checks were completed, the initial ambient function test provided functional baseline performance and readiness to enter the next phases of testing, electromagnetic interference (EMI) and thermal vacuum characterization testing.

Following the characterization test, the HEO-3 payload will enter its prototype qualification acceptance testing for a scheduled delivery in 2013.

The SBIRS team is led by the Infrared Space Systems Directorate at the U.S. Air Force Space and Missile Systems Center, Los Angeles Air Force Base. Lockheed Martin Space Systems Company, Sunnyvale, Calif., is the SBIRS prime contractor, with Northrop Grumman Electronic Systems, Azusa, Calif., the payload integrator. Air Force Space Command operates the SBIRS system.

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