Candrea Thomas/Launch Commentator Ten?.
GLS is go for main engine start.
Candrea Thomas/Launch Commentator: Seven?six?five?four?three?two? one?booster ignition.
And liftoff of space shuttle Endeavour -- preparing our home in space for a larger international family.
Houston now controlling.
Houston -- Endeavour -- roll program.
Roger roll Endeavour.
Commander Chris Ferguson confirming Endeavour is rolling on course for
rendezvous with the International Space Station. Speed a 1,000 mph.
Altitude one mile, downrange distance six and one half miles from Kennedy Space Center already.
Three engines slowing down to the 72 percent of their rated thrust, as the shuttle goes through the realm of maximum
aerodynamic pressure -- altitude five miles, downrange eight miles from Kennedy Space Center -- speed 1,500 mph.
Endeavour go at throttle up.
All systems remain go. Speed 2,000 mph, altitude 10 miles. Downrange systems 12 miles from Kennedy Space Center.
It?s one and a half minutes since launch -- Endeavour has consumed two and a quarter
million pounds of propellant -- and weighs less than half of what it did at launch.
Standing by for burnout of the twin solid rocket boosters and jettison.
Booster officer confirms a clean separation of the two solid rockets,
Endeavour?s three main engines continuing the second stage, accelerating at 37 million horsepower.