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STS-127 Launch Coverage
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STS-127 Launch Blog
The launch attempt on June 17, 2009, for STS-127 was scrubbed due to a hydrogen leak. This is a detailed account of the launch procedures during the countdown as recorded by NASA's Launch Blog.
The blog originates from Firing Room 3 in the Launch Control Center at Kennedy, where a veteran team of engineers and managers watches every detail as Endeavour is fueled and readied for its 8 1/2-minute climb into space.
Follow Updates on NASA.gov
The NASA Launch Blog is closing down for the morning following the decision to scrub today's launch attempt. NASA's Web site will continue to update the status of the mission. Thanks for joining us!
Launch Attempt Scrubbed
Launch Director Pete Nickolenko has called off today's launch attempt of the STS-127 mission.
Countdown Activities Continue
The crew of space shuttle Endeavour has received a detailed weather briefing this morning and other launch preparations are moving along. These will continue while engineers troubleshoot the leak at the Ground Umbilical Carrier Plate.
Countdown Resumes at T-3 hours
The countdown has resumed at the T-3 hour mark while troubleshooting continues on the hydrogen leak in the area of the Ground Umbilical Carrier Plate.
Fueling Reaches 98 percent Level
The fuel loading stopped when the hydrogen tank reached the 98 percent level. Engineers continue to analyze the leak by opening the vent valve that lets evaporating hydrogen leave the tank and be carried away from the shuttle safely.
Fueling Stopped at 1:02 a.m.
The loading of hydrogen fuel into the external tank has been stopped for evaluation of a leak in the area of the Ground Umbilical Carrier Plate.
Fuel Flow Stopped Again
Launch controllers have stopped the loading of hydrogen fuel into the external tank again. Engineers are monitoring a leak of hydrogen in the area of the Ground Umbilical Carrier Plate, which is part of the system that funnels gaseous hydrogen away from the shuttle during countdown.
Fueling to Begin Again
Launch controllers are going to begin loading the external tank with more liquid hydrogen fuel to help them troubleshoot the leak they have been monitoring.
Engineers to Recycle Vent Valve
The engineers on the launch team are cycling the vent valve to see if it cures the hydrogen leak that they have been monitoring.
Controllers Monitoring Leak at GUCP
The launch team here at Kennedy is monitoring a leak in the area of the Ground Umbilical Carrier Plate, which is the connecting point between the external tank and the launch tower. A leak developed at the GUCP during the previous external tank filling operation Saturday morning.
Launch Team Preparing Expedited Schedule
After dealing with a weather delay of almost three hours, the launch team here at Kennedy is speeding up some of its processes to make up the time and still make the liftoff time of 5:40 a.m. Shuttle Launch Director Mike Leinbach said the team will not take shortcuts relating to safety.
Launch Morning at Kennedy!
Good morning and welcome to the NASA Launch Blog. We are coming to you from Firing Room 3 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida. About three miles away, space shuttle Endeavour stands bathed in spotlights on Launch Pad 39A.
Launch activities are continuing after thunderstorms over Kennedy earlier delayed the loading of the external tank. At 11:04 p.m., the launch team here began filling the tank with the super-cold propellants Endeavour will use to power its three main engines during its climb to orbit. It will be fully loaded at 2:04 a.m. The pumps will go into “stable replenish” mode then, which means they will put in just enough propellants to replace the amount that evaporates during the countdown.
Tanking takes about three hours. The original schedule called for the tanking to begin at 8:15 p.m., but the launch team is confident they can make up the time and launch Endeavour on schedule at 5:40 a.m.
Join us at 12:30 a.m.
We are going to begin coverage of the launch of space shuttle Endeavour on the STS-127 mission at 12:30 a.m. Wednesday. Endeavour is to deliver the final piece of Japan's "Kibo" laboratory to the International Space Station. Seven astronauts will fly the mission, including four who have not gone into space before. NASA's coverage on the Web will include photos and videos along with detailed minute-by-minute updates as the countdown progresses.
Live Coverage Team
Blog Updates: Steven Siceloff
Site Updates: Anna Heiney
Video Uploads: Elaine Marconi
Photos & Captions: Cheryl Mansfield
Quality Control: Rebecca Sprague
Video Production: Aly Lee
Video Capture/Editing: Chris Chamberland and Gianni Woods
The launch attempt on June 17, 2009, for STS-127 was scrubbed due to a hydrogen leak. This is a detailed account of the launch procedures during the countdown as recorded by NASA's Launch Blog. The blog originates from Firing Room 3 in the Launch Control Center at Kennedy, where a veteran team of engineers and managers watches every detail as Endeavour is fueled and readied for its 8 1/2-minute climb into space.
Follow Updates on NASA.gov
The NASA Launch Blog is closing down for the morning following the decision to scrub today's launch attempt. NASA's Web site will continue to update the status of the mission. Thanks for joining us!
Launch Attempt Scrubbed
Launch Director Pete Nickolenko has called off today's launch attempt of the STS-127 mission.
Countdown Activities Continue
The crew of space shuttle Endeavour has received a detailed weather briefing this morning and other launch preparations are moving along. These will continue while engineers troubleshoot the leak at the Ground Umbilical Carrier Plate.
Countdown Resumes at T-3 hours
The countdown has resumed at the T-3 hour mark while troubleshooting continues on the hydrogen leak in the area of the Ground Umbilical Carrier Plate.
Fueling Reaches 98 percent Level
The fuel loading stopped when the hydrogen tank reached the 98 percent level. Engineers continue to analyze the leak by opening the vent valve that lets evaporating hydrogen leave the tank and be carried away from the shuttle safely.
Fueling Stopped at 1:02 a.m.
The loading of hydrogen fuel into the external tank has been stopped for evaluation of a leak in the area of the Ground Umbilical Carrier Plate.
Fuel Flow Stopped Again
Launch controllers have stopped the loading of hydrogen fuel into the external tank again. Engineers are monitoring a leak of hydrogen in the area of the Ground Umbilical Carrier Plate, which is part of the system that funnels gaseous hydrogen away from the shuttle during countdown.
Fueling to Begin Again
Launch controllers are going to begin loading the external tank with more liquid hydrogen fuel to help them troubleshoot the leak they have been monitoring.
Engineers to Recycle Vent Valve
The engineers on the launch team are cycling the vent valve to see if it cures the hydrogen leak that they have been monitoring.
Controllers Monitoring Leak at GUCP
The launch team here at Kennedy is monitoring a leak in the area of the Ground Umbilical Carrier Plate, which is the connecting point between the external tank and the launch tower. A leak developed at the GUCP during the previous external tank filling operation Saturday morning.
Launch Team Preparing Expedited Schedule
After dealing with a weather delay of almost three hours, the launch team here at Kennedy is speeding up some of its processes to make up the time and still make the liftoff time of 5:40 a.m. Shuttle Launch Director Mike Leinbach said the team will not take shortcuts relating to safety.
Launch Morning at Kennedy!
Good morning and welcome to the NASA Launch Blog. We are coming to you from Firing Room 3 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida. About three miles away, space shuttle Endeavour stands bathed in spotlights on Launch Pad 39A.
Launch activities are continuing after thunderstorms over Kennedy earlier delayed the loading of the external tank. At 11:04 p.m., the launch team here began filling the tank with the super-cold propellants Endeavour will use to power its three main engines during its climb to orbit. It will be fully loaded at 2:04 a.m. The pumps will go into “stable replenish” mode then, which means they will put in just enough propellants to replace the amount that evaporates during the countdown.
Tanking takes about three hours. The original schedule called for the tanking to begin at 8:15 p.m., but the launch team is confident they can make up the time and launch Endeavour on schedule at 5:40 a.m.
Join us at 12:30 a.m.
We are going to begin coverage of the launch of space shuttle Endeavour on the STS-127 mission at 12:30 a.m. Wednesday. Endeavour is to deliver the final piece of Japan's "Kibo" laboratory to the International Space Station. Seven astronauts will fly the mission, including four who have not gone into space before. NASA's coverage on the Web will include photos and videos along with detailed minute-by-minute updates as the countdown progresses.
Blog Updates: Steven Siceloff
Site Updates: Anna Heiney
Video Uploads: Elaine Marconi
Photos & Captions: Cheryl Mansfield
Quality Control: Rebecca Sprague
Video Production: Aly Lee
Video Capture/Editing: Chris Chamberland and Gianni Woods