january, 2018

20jan00:48Atlas V • SBIRS GEO-4

Event Details

Launch Date: January 20, 2018
Launch Window: 00:48-01:28 UTC
Launch Vehicle: Atlas V 411 (AV-076)
Launch Operator: United Launch Alliance
Launch Site: SLC-41 Cape Canaveral Air Force Station, Florida
Payload: SBIRS GEO Flight 4 (Space-Based Infrared System)
Payload Type: Missile Early Warning
Payload Operator: U.S. Air Force


A United Launch Alliance Atlas V rocket will launch the fourth Geostationary Satellite of the Space-Based Infrared for the United States Air Force. This launch will mark the completion of the fully operational SBIRS constellation with four satellites in Geostationary Orbit and at least a pair of functional hosted payloads on satellites in Highly Elliptical Orbits to provide global missile warning and tracking capability via staring and scanning sensors installed on each satellite, capable of detecting infrared signatures of Intercontinental Ballistic Missiles as well as the much fainter signatures of short -range missiles. Atlas V AV-076 will fly in the 411 configuration with one Solid Rocket Boosters, using a more-powerful than previous SBIRS missions to provide sufficient margin for the deorbitation of the Centaur upper stage.


Mission Resources:

➡ Mission Updates

? Live Launch Coverage

? Launch Vehicle Overview:  Atlas V 411

? Payload Overview: Space-Based Infrared System 

Countdown Timeline

Flight Profile

Launch Weather

? Launch Site Schedule


(Saturday) 00:48 UTC


Space Launch Complex 41

Launch Complex 41, Brevard County, FL, United States