Watch Live Tonight! Atlas V Launching Missile-Warning Satellite @ 7:48 pm ET

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Watch Live Tonight! Atlas V Launching Missile-Warning Satellite @ 7:48 pm ET
Space.com
By SPACE.com Staff |  January 19, 2018 09:42am ET

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Update for Jan. 19:A United Launch Alliance Atlas V rocket will launch the new Space Based Infrared System GEO Flight 4 satellite for the U.S. Air Force at 7:48 p.m. EST (0048 GMT on Jan. 20). ULA's launch webcast will begin at 7:28 p.m. EST (0028 GMT). There is a 90-percent chance of good launch weather for the mission, which has a 40-minute launch window.

Tonight's launch comes after a 24-hour delay for the SBIRS GEO Flight 4 mission when ULA called off a Thursday launch try due to a ground issue associated with the rocket's liquid oxygen system.


From ULA:

Mission Description: SBIRS, considered one of the nation's highest priority space programs, is designed to provide global, persistent, infrared surveillance capabilities to meet 21st century demands in four national security mission areas: missile warning, missile defense, technical intelligence and battlespace awareness. 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.


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