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STS-127: Launch Sunday?

Fourth time's a charm? NASA has cleared Shuttle Endeavour for launch today, after lightning struck near the launch pad Friday night, spurring mission managers to check out all the electrical systems at the pad and on the vehicle. NASA reports:

Endeavour and Crew Set for Today's Launch to Station

Space shuttle Endeavour on Launch Pad 39A awaits launch.
Image above: On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour awaits launch. Image credit: NASA TV

Sunday Launch Day Highlights

Space shuttle Endeavour sits atop Launch Pad 39A at NASA's Kennedy Space Center in Florida.
Image above: Rollback of the rotating service structure (at left) reveals space shuttle Endeavour atop the mobile launcher platform. Photo Credit: NASA/Kim Shiflett
› View High-res

All times listed in EDT


8:00 a.m. Mission Management Team meets to give a “go” for the fueling of Endeavour
9:30 a.m. Fueling coverage begins on NASA TV and Launch Blog
9:48 a.m. Countdown resumes at the T-6 hour mark with the fueling of Endeavour
12:48 p.m. Countdown enters a 2-hour, 30-minute built-in hold at the T-3 hour mark; fueling enters stable replenish
2:00 p.m. Launch coverage begins on NASA TV and Launch Blog
3:18 p.m. Countdown resumes at T-3 hours
3:23 p.m. Endeavour astronauts depart crew quarters for Launch Pad 39A
3:53 p.m. Astronauts arrive at the launch pad and begin to board Endeavour
5:08 p.m. Begin closing Endeavour's crew hatch
5:58 p.m. Countdown enters a 10-minute planned hold at the T-20 minute mark
6:08 p.m. Countdown resumes at the T-20 minute mark
6:19 p.m. Countdown enters a 45-minute planned hold at the T-9 minute mark, during which the Mission Management Team and Launch Control team will conduct polls to give a final "go" decision for launch
7:04 p.m. Countdown resumes at the T-9 minute mark
7:08 p.m. Auxiliary Power Units start at the T-5 minute mark
7:13 p.m. Endeavour launches on the STS-127 mission
7:22 p.m. Main Engine Cut Off (MECO)

Live HD webcast at SpaceVidCast. Preflight pics are up at CBC, JSC, and Sentinel. Launch blog at NASA. Pics and video at KSC. More clips at Space Multimedia. Live video at SFN. Discussion at Nasaspaceflight. Check the links at right for play-by-play and NASA TV.

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