STS-129 Atlantis Launch Countdown

Spacers Launch!

Space Shuttle Atlantis looks good for a launch today at 2:28pm EST. Weather looks perfect and no issues are being worked. The crew has just been strapped into the vehicle, comm checks are underway, and any moment now tanking will begin.

The STS-129 crew being strapped in

This post will be updated as the launch countdown progresses.

Happy Launching Spacers!

[update: 12:33pm EST] Hatch is closed. The White Room crew has completed hatch closing procedures and the crew is sealed in to Atlantis.

The White Room crew closes the hatch

[update: 12:42pm EST] Launch team troubleshooting small noise issue on pump power line. No impact expected on launch.

[update: 1:15pm EST] Fuel pump power noise problem is not an issue. Planned 10 minute hold begins.

[update: 1:25pm EST] Countdown resumes out of planned hold. White Room closeout crew prepares to leave.

White Room closout crew prepares to leave

[update: 1:40pm EST] Final planned hold underway. All systems and weather reports look good. No issues being worked.

Atlantis ready to launch

[update: 2:08pm EST] Skies clearing, weather improving. 10 minutes remaining in planned hold.

[update: 2:18pm EST] Flight controllers polled, all go for launch.

[update: 2:22pm EST] Countdown resumes. Orbiter Access Arm retracted.

[update: 2:28pm EST] Atlantis launches!

Liftoff of Atlantis STS-129

[update: 2:31pm EST] Booster separation.

Solid rocket booster separation

[update: 2:37pm EST] Main Engine Cutoff (MECO). Externatl tank separation. Atlantis is in orbit travelling 17,000mph.


A flawless climb to orbit for Atlantis to begin the STS-129 mission. Keep an eye on Spacers throughout the mission for all the updates including the docking on Wednesday morning. NASA TV covers every shuttle mission from launch to landing, so click that link and enjoy!
Images credit: NASA TV
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