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

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 integrator. Air Force Space Command operates the SBIRS system.

The successful deployment and checkout of the nation's second of a new generation of SBIRS sensors demonstrated that its performance meets or exceeds specifications. Equipped with a sophisticated scanning sensor, the HEO-2 payload joins the first HEO payload, which continues to perform with outstanding results as it is readied to begin on-orbit operations for the user later this year.

In addition to detecting ballistic missile launches from northern polar regions, HEO payloads also have improved sensitivity needed to detect dim theater missiles and can be tasked to scan other areas of military interest.

The HEO sensor provides an unprecedented infrared view of the battlefield that represents the first steps in an evolving battlespace awareness capability while also providing real-time data on missiles, aircraft and other events.

"The second HEO sensor is performing as advertised and we are delighted for our Air Force customer. This further confirms the capability that we can expect with the forthcoming launch of the GEO constellation," said Joanne Maguire, Space Systems Company executive vice president.

"This event is another major step forward in our commitment to provide unparalleled space surveillance capabilities that will put critical, near real-time information in the hands of our warfighters."

SBIRS geosynchronous (GEO) satellites, the first of which is on track for launch in late 2009, feature a scanning sensor that will provide for short revisit times over its full field of view and a staring sensor that can be tasked for step-stare or dedicated stare operations over smaller areas.

The GEO scanner and other payload components such as the focal plane assembly, and processing algorithms are identical to those used on HEO payloads.

"With the second HEO sensor on-orbit and providing the same revolutionary capability as the first sensor, SBIRS is now providing outstanding persistent surveillance of the northern hemisphere," said Jim Pitts, Northrop Grumman's corporate vice president and president, Electronic Systems, the payload integrator.

"We're proud of our role in bringing this unparalleled capability to the warfighers."

As the SBIRS prime contractor, Lockheed Martin Space Systems Company provides program management, the GEO spacecraft bus, HEO and GEO payload pointing, and system engineering and integration.

Lockheed Martin Information Systems and Global Services builds and maintains the SBIRS ground segment which has been operational since 2001. Northrop Grumman is the major subcontractor and provides the HEO and GEO payloads and participates in ground system development and systems engineering.

"The SBIRS team takes great pride in providing the U.S. military with significantly improved surveillance capabilities," said Jeff Smith, Lockheed Martin's SBIRS vice president and program manager.

"The performance of this sophisticated payload reflects the talent and dedication by a joint government-industry team relentlessly focused on achieving mission success on this program. We look forward to further expanding SBIRS mission capabilities with the launch of the first GEO satellite."

Lockheed Martin's current SBIRS contract includes the two HEO payloads now on-orbit, two GEO satellites, as well as ground-based assets to receive and process the infrared data. The program is in the early stages of adding additional GEO spacecraft and HEO payloads to the planned constellation.

related report
Second SBIRS payload completes early on-orbit checkout
The Air Force has successfully completed the early on-orbit checkout of the second Space Based Infrared Systems sensor operating in a highly elliptical orbit over the northern hemisphere. The second sensor is known as SBIRS HEO-2.

"The successful launch and checkout of HEO-2 is a further demonstration of the strong, positive momentum of the SBIRS team," said SMC Commander, Lt. Gen. Tom Sheridan. "This is a critical step in delivering a revolutionary new capability that will address some of the most serious threats to our nation."

The SBIRS HEO-2 payload provides performance that is exceeding specifications across the missile warning, missile defense, technical intelligence and battlespace awareness mission areas. Compared to the legacy Defense Support Program (DSP) infrared sensor, SBIRS delivers about 10 times better sensitivity and up to five times faster revisit capability. SBIRS is revolutionizing space based infrared monitoring of the earth with its wide field of view, increased sensitivity, fast revisit rate, and persistent presence.

The SBIRS sensor effectively detects heat or hot gasses from missiles and other man-made objects, terrestrial events like volcanic eruptions and wildfires, and weather data from clouds and storms. The sensor is also providing information on static sources of infrared energy such as the flaring of methane gas from oil wells and pipelines.

SBIRS HEO is designed to use advanced space sensors and ground systems to provide infrared (heat signature) information from space. The highly elliptical orbiting sensors cover the northern hemisphere for approximately 12 hours a day from egg-shaped elliptical orbits reaching 35,000 kilometers above the North Pole.

"All of our SBIRS team members can be congratulated and justifiably proud of their contributions to the success of this critical program and the significant impact it will have on our national security," said SMC's Space Based Infrared Systems Wing Commander, Col. Roger Teague. "These payloads are delivering remarkable on-orbit capability and give us confidence as we prepare for the first geosynchronous satellite launch."

The Air Force Space and Missile Systems Center's Space Based Infrared Systems Wing manages the SBIRS program to develop both the elliptical orbiting payloads and geosynchronous orbiting satellites and sensors as well as the ground systems to support mission operations. SMC is a unit of Air Force Space Command.

In November 2006, the Air Force announced the successful checkout of the HEO-1 sensor. The efforts of the Lockheed Martin, Northrop Grumman, Aerospace and government team enabled the SBIRS Wing to successfully transition operations of the first HEO payload to the 11th Space Warning Squadron at Schriever Air Force Base, Colo., in November 2007.

By September 2008, alerts from the HEO-1 sensor will be incorporated into the system providing Defense Support Program messaging to warfighters. The HEO-2 sensor will continue engineering testing over several months leading to full operational use of the payload by Air Force Space Command.

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