Atlas V rocket launch live stream: Watch online HERE – What time is the launch TONIGHT? | Science | News

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What time is the Atlas V launch? 

The rocket is due to blast off at 12.48am GMT (19:48 ET) from Space Launch Complex 41 at Cape Canaveral air force station in Florida. 

The launch was due to take place yesterday but was abandoned due to technical difficulties. 

The United Launch Alliance (ULA), who operate the Atlas rockets, tweeted last night: “Atlas V SBIRS GEO Flight 4 mission was scrubbed today due to a ground issue associated with the booster liquid oxygen system.”

How to watch the Atlas V rocket launch online

About 20 minutes before the rocket takes off, the ULA will start its webcast live stream which you can watch above.

The ULA has already confirmed that the countdown to launch is underway, adding that this is one of the USA’s “highest priority” missions. 

What is the mission? 

On its 75th flight Atlas V will launch the fourth geostationary satellite in the Space Based Infrared System (SBIRS), which is a group of satellites designed to detect and track missile launches on Earth. 

Built by Lockheed Martin, the new constellation of satellites will replace the Defense Support Program – a fleet that began tracking missile launches in the 1960s. 

The satellites fly in geostationary orbits, according to, carrying powerful scanning and infrared surveillance gear to track missile launches from orbit.

A ULA statement said: “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 defence, technical intelligence and battle-space awareness.”

There are currently eight Atlas V launches scheduled this year, including this mission. 

Spaceflight said: “These include the first Atlas V launch with a dual-engine Centaur and no payload fairing – the N22 configuration – which will be used to deploy Boeing’s Starliner spacecraft. 

“Other planned launches include NOAA’s GOES-S geostationary weather satellite and NASA’s InSight mission to Mars. 

“Barring any unexpected anomalies, 2018 is also expected to see Atlas become the most reliable rocket in service worldwide – an accolade it already holds by some measures – when its stablemate Delta II is retired in September.”

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