1 00:00:01,270 --> 00:00:02,350 \h Candrea Thomas/Launch Commentator TenÖ. 2 00:00:02,350 --> 00:00:04,170 \h GLS is go for main engine start. 3 00:00:04,170 --> 00:00:12,120 \h Candrea Thomas/Launch Commentator: SevenÖsixÖfiveÖfourÖthreeÖtwoÖ oneÖbooster ignition. 4 00:00:12,120 --> 00:00:21,620 \h And liftoff of space shuttle Endeavour -- preparing our home in space for a larger international family. 5 00:00:21,620 --> 00:00:25,460 \h Houston now controlling. 6 00:00:25,460 --> 00:00:28,670 \h Houston -- Endeavour -- roll program. 7 00:00:28,670 --> 00:00:30,920 \h Roger roll Endeavour. 8 00:00:30,920 --> 00:00:33,720 \h Commander Chris Ferguson confirming Endeavour is rolling on course for 9 00:00:33,720 --> 00:00:41,140 \h a rendezvous with the International Space Station. Speed 1,000 mph. 10 00:00:41,140 --> 00:00:59,550 \h Altitude one mile, downrange distance six and one half miles from Kennedy Space Center already. 11 00:00:59,550 --> 00:01:05,090 \h Three engines slowing down to 72 percent of their rated thrust, as the shuttle goes through the realm of maximum 12 00:01:05,090 --> 00:01:11,950 \h aerodynamic pressure -- altitude five miles, downrange eight miles from Kennedy Space Center -- speed 1,500 mph. 13 00:01:11,950 --> 00:01:15,590 \h Endeavour go at throttle up. 14 00:01:15,590 --> 00:01:37,860 \h All systems remain go. Speed 2,000 mph, altitude 10 miles. Downrange systems 12 miles from Kennedy Space Center. 15 00:01:37,860 --> 00:01:41,280 \h Itís one and a half minutes since launch -- Endeavour has consumed two and a quarter 16 00:01:41,280 --> 00:01:50,130 \h million pounds of propellant -- and weighs less than half of what it did at launch. 17 00:01:50,130 --> 00:02:25,860 \h Standing by for burnout of the twin solid rocket boosters and jettison.