Headlines > News > Second Spacewalk of STS-130 Mission Complete

Second Spacewalk of STS-130 Mission Complete

Published by Klaus Schmidt on Sun Feb 14, 2010 9:03 am via: NASA
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(NASA) – Mission Specialists Robert Behnken and Nicholas Patrick completed the second of three spacewalks planned for the STS-130 mission at 3:14 p.m. EST Sunday.

It was the 232nd spacewalk conducted by U.S. astronauts, the fifth for Behnken and the second for Patrick. It was the 139th in support of International Space Station assembly and maintenance, totaling 867 hours, 28 minutes.

Mission Specialists Nicholas Patrick and Robert Behnken work outside the International Space Station during the second spacewalk of the STS-130 mission. Image credit: NASA TV

Mission Specialists Nicholas Patrick and Robert Behnken work outside the International Space Station during the second spacewalk of the STS-130 mission. Image credit: NASA TV

Behnken and Patrick spent the first part of the spacewalk connecting two ammonia loops, with two lines in each loop, from the Destiny module to Tranquility, hooking the new module to the station’s cooling system, and opened one of those loops to initiate cooling of the module. Then they installed thermal covers on Tranquility’s keel pin and trunnions, to prevent condensation inside the module, outfitted the nadir docking port of Tranquility for the relocation of the cupola module, and installed handrails.

Station Commander Jeff Williams and Flight Engineers Soichi Noguchi and T.J. Creamer, Pilot Terry Virts and Mission Specialist Kathryn Hire continued outfitting Tranquility’s interior, including setting up the ventilation system and configuring racks.

Early Saturday morning the crew members outfitting Tranquility were unable to install a center disk cover on the module’s outboard docking port due to interference with the cover’s attach mechanism from hardware inside the cupola; that cover protects the docking interface from debris and temperature extremes when there’s no module attached to it. The planned depressurization and grappling of the cupola at the end of the crew work day has been deferred to permit troubleshooting of that situation.

The STS-130 mission includes three spacewalks and the delivery of a connecting module that will increase the station’s interior space. Node 3, known as Tranquility, will provide additional room for crew members and many of the station’s life support and environmental control systems. Attached to the node is a cupola, which is a robotic control station with six windows around its sides and another in the center that will provide a panoramic view of Earth, celestial objects and visiting spacecraft. After the node and cupola are added, the space station will be about 90 percent complete.

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