Endeavour’s Payload Bay Doors Are Closed For Landing

Space shuttle Endeavour’s payload bay doors are closed and everything continues to proceed on schedule for Wednesday morning’s landing attempt.

Weather is forecast and observed “go” and astronaut Rick Sturckow is flying weather reconnaissance at Kennedy Space Center to assess conditions for Endeavour’s landing.

At 10:59 p.m. Mission Control is expected to give a “go” for Endeavour’s computers to begin running the Ops 3 entry software. At 11:29 p.m. a “go” is expected for crew suit up. The “go” for deorbit burn is expected by 1:09 a.m. Wednesday.

The deorbit burn scheduled for 1:29:43 a.m. will lead to a landing at 2:35:23 a.m.



Space shuttle Atlantis now is moving out of Kennedy Space Center’s Vehicle Assembly Building headed for Launch Pad 39A. First motion was at 8:42 p.m. EDT.

Technicians repaired a minor hydraulic leak on a corner valve for the jacking and elevation system on the crawler-transporter, which delayed the scheduled 8 p.m. rollout start.

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Weather Forecast “Go” For Landing

Space shuttle Endeavour’s crew continues to prepare for Wednesday’s 2:35 a.m. landing at Kennedy Space Center’s Shuttle Landing Facility (SLF). The entry team of flight controllers has been in Houston’s Mission Control Center since 7 p.m. EDT and deorbit preparations are scheduled to begin at 9:26 p.m. Weather is forecast “go” for landing.



Space shuttle Atlantis now is moving out of Kennedy Space Center’s Vehicle Assembly Building headed for Launch Pad 39A. First motion was at 8:42 p.m. EDT.

Technicians repaired a minor hydraulic leak on a corner valve for the jacking and elevation system on the crawler-transporter, which delayed the scheduled 8 p.m. rollout start.

The media Q&A with Atlantis’ four astronauts on NASA TV is expected about 9:15 p.m.

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Shuttle Crew Prepares to End Mission

The STS-134 crew members were awakened at 5:57 p.m. EDT with the song “Sunrise Number 1,” performed by the band Stormy Mondays. This song was chosen in an online vote of the general public as the winner in the Space Shuttle Program’s Original Song Contest, which attracted 1350 entrants.

The shuttle crew begins deorbit preparations at 9:26 p.m. and should close Endeavour payload bay doors at 10:49 p.m. By 1:19 a.m. Wednesday Entry Flight Director Tony Ceccacci will poll his team for a “go” or “no-go” on the deorbit burn; assuming the decision is “go,” Commander Mark Kelly will fire Endeavour’s engines at 1:29 a.m. to slow the orbiter enough for it to fall out of orbit and begin the last leg of its trip, concluding with a touchdown on runway 15 at the Kennedy Space Center’s Shuttle Landing Facility at 2:35 a.m.



Space shuttle Atlantis now is moving out of Kennedy Space Center’s Vehicle Assembly Building headed for Launch Pad 39A. First motion was at 8:42 p.m. EDT.

Technicians repaired a minor hydraulic leak on a corner valve for the jacking and elevation system on the crawler-transporter, which delayed the scheduled 8 p.m. rollout start.

The media Q&A with Atlantis’ four astronauts on NASA TV is expected about 9:15 p.m.

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Air Force leaders issue summer safety message

Secretary of the Air Force Michael Donley, Air Force Chief of Staff Gen. Norton Schwartz and Chief Master Sgt. of the Air Force James A. Roy send the following Critical Days of Summer safety campaign message to the Airmen of the U.S. Air Force and their families:

Memorial Day weekend through Labor Day marks the season of greatest risks for our Air Force team. To counter those risks, we will kick off the Critical Days of Summer safety campaign for 2011 on May 28th.
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Endeavour Crew Prepares for Wednesday Landing

Space shuttle Endeavour’s crew is wrapping up final preparations for its planned landing at 2:35 a.m. EDT Wednesday at NASA’s Kennedy Space Center in Florida. The crew is preparing to stow the Ku-Band antenna, used for high-data rate communications and television from space, and will go to sleep at 9:56 a.m.

Teams at NASA Kennedy Space Center are preparing for space shuttle Atlantis' final move from the Vehicle Assembly Building to Launch Pad 39A, which is scheduled to begin at 8 p.m. EDT tonight. Atlantis is being readied for the STS-135 mission, the last flight of the Space Shuttle Program.

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