SBIRS is designed to provide early warning of missile launches, and simultaneously support other missions including missile defense, technical intelligence and battlespace characterization.

The test phase, known as Baseline Integrated System Test (BIST), is conducted at Lockheed Martin's Space Systems facilities in Sunnyvale, Calif. and is designed to characterize the overall performance of the GEO-2 satellite and establish a performance baseline prior to entering environmental testing.

"Getting our second satellite integrated and into system testing is a major accomplishment for the program," said Lt Col Heath Collins, Commander, SBIRS Space Squadron.

"It couldn't have happened without the skill, professionalism, and dedication of the combined SBIRS team. This is yet one more step towards providing revolutionary missile warning capabilities to the warfighters and national decsion makers in the coming years."

The first phase of BIST is conducted with the GEO-2 spacecraft in an expanded mode to allow for thorough checkout of the completed spacecraft bus with the infrared payload, which was delivered by the payload subcontractor Northrop Grumman in April 2009 and integrated into the spacecraft core and electronics equipment panels over the summer.

Following this test phase, the team will install the equipment panels and communications antennas in the flight configuration for environmental testing, where the integrated spacecraft will be subjected to acoustic and thermal vacuum levels expected during launch and on-orbit operations. GEO-2 is planned for launch in fiscal year 2012.

"As the result of the team's continuous process improvement initiatives, we are progressing steadily in our integration and test activities on this second cutting-edge spacecraft," said Keoki Jackson, Lockheed Martin's SBIRS GEO-2 program manager. "We look forward executing this key test and achieving total mission success on this critical national security program."

The first SBIRS spacecraft (GEO-1) is currently in thermal vacuum testing, where it has already completed the first of several hot and cold temperature cycles as part of a comprehensive test-like-you-fly process. The extensive test is the last environmental test phase prior to final checkout and shipment to the launch site in late 2010.

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

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