SpaceX Won't Try Rocket Landing on Drone Ship After Satellite Launch Today

April 11, 2014 – 07:26 am
SpaceX's Falcon 9 rocket and the DSCOVR space-weather satellite on the launch pad at Florida's Cape Canaveral Air Force Station. Launch is scheduled for the evening of Feb. 11, 2015.
SpaceX's Falcon 9 rocket and the DSCOVR space-weather satellite on the launch pad at Florida's Cape Canaveral Air Force Station. Launch is scheduled for the evening of Feb. 11, 2015.
Credit: SpaceX

SpaceX has scaled back the daring rocket-landing test that it plans to perform after it launches a space weather satellite today (Feb. 11).

The private spaceflight company had intended to try landing the first stage of its Falcon 9 rocket on an "autonomous spaceport drone ship" in the Atlantic Ocean during today's liftoff of the Deep Space Climate Observatory (DSCOVR), which is scheduled to take place at 6:03 p.m. EST (2303 GMT) from Florida's Cape Canaveral Air Force Station. You can watch the SpaceX launch live online, courtesy of NASA TV, beginning at 5 p.m. EST (2200 GMT).

But rough seas have scuttled that plan.

"The drone ship was designed to operate in all but the most extreme weather. We are experiencing just such weather in the Atlantic, with waves reaching up to three stories in height crashing over the decks, " SpaceX representatives wrote in an update today. The drone ship, called "Just Read the Instructions, " is named after a fictional sentient colony ship from the science fiction novels of author Iain M. Banks.

"Also, only three of the drone ship's four engines are functioning, making station-keeping in the face of such wave action extremely difficult, " SpaceX representatives wrote in the statement. "The rocket will still attempt a soft landing in the water through the storm (producing valuable landing data), but survival is highly unlikely."

The DSCOVR launch has already been pushed back three days because of a radar-tracking glitch and weather issues, including strong upper-level winds, which scuttled yesterday's (Feb. 10) liftoff attempt. And a lengthier delay looms if the Falcon 9 can't get off the ground today.[The DSCOVR Mission in Photos]

"Because DSCOVR is traveling to deep space, the moon's location on Feb. 12 through 19 would be close enough to DSCOVR to affect the spacecraft's trajectory, " NASA officials wrote in a blog post today. "This would require performing mid-course correction burns that would use more fuel than what is planned for the mission. After today, the next launch opportunity would be on Friday, Feb. 20, at 5:43:44 p.m. EST."

Weather forecasts predict a 90 percent chance of good conditions at the launch pad today, and more manageable high-altitude winds, they added.


Source: www.space.com

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