SBIRS GEO Flight 4 (Atlas V)
19 January 2018
Space Launch Complex 41
Cape Canaveral Air Force Station

A United Launch Alliance (ULA) Atlas V 411 rocket launched the fourth Space Based Infrared System (SBIRS) satellite to geosynchronous transfer orbit from Space Launch Complex-41 at Cape Canaveral Air Force Station at 7:48 p.m. on 19 January 2018.

The Space Based Infrared System is considered one of the nation’s highest priority space programs and is designed to provide global, persistent, infrared surveillance capabilities to meet 21st Century demands in four national security mission areas:

Missile Warning
Reliable, unambiguous, timely and accurate warning for theater and strategic missile launches.

Missile Defense
Delivery of critical information supporting the effective operation of missile defense systems.

Technical Intelligence
Ability to characterize infrared (IR) event signatures, phenomenology and threat performance data.

Battlespace Awareness
Delivery of comprehensive IR data to help characterize battlespace conditions.

The SBIRS team is led by the Remote Sensing Systems Directorate at the U.S. Air Force Space and Missile Systems Center. Lockheed Martin is the prime contractor, with Northrop Grumman as the payload integrator. Air Force Space Command operates the SBIRS system.

The ULA Atlas V 411 rocket, a unique configuration that includes just one solid rocket booster, provides the optimum performance to precisely deliver a range of mission types. In its more than 10 years of service, the 411 rocket has completed four flights, including NASA’s OSIRIS-REx mission.

SCRUB - 18 January 2018
The Atlas V rocket with SBIRS GEO Flight 4 sits grounded on Space Launch Complex 41 after a valve problem with the ground equipment caused a 24-hour turnaround.
LAUNCH - 19 January 2018
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