NASA STS-130 Report #13 5 a.m. CST Sunday, Feb. 14, 2010

Mission Control Center, Houston, Texas

HOUSTON – Endeavour astronauts Robert Behnken and Nicholas Patrick finished all tasks planned for the mission’s second spacewalk, integrating the new Tranquility node into the International Space Station despite a slightly shortened spacewalk.

The spacewalkers connected two ammonia coolant loops, installed thermal covers around the ammonia hoses, outfitted the Earth-facing port on Tranquility for the relocation of its cupola, and installed handrails and a vent valve on the new module.

The spacewalk ended after 5 hours, 54 minutes to give Behnken and Patrick additional time in the airlock as part of a cleanup process for possible contamination. While hooking up a quick-disconnect valve, a small amount of ammonia eked out of a connector. Procedures called for a