Global area facility Commander Peggy Whitson and Flight Engineer Dan Tani finished a 7-hour, 4-minute spacewalk at 11:54 a.m. EST Saturday, continuing the outside outfitting regarding the Harmony node in its brand brand brand new place while watching U.S. laboratory Destiny.
Image at right: Whitson and Tani connect a fluid tray towards the Destiny Laboratory. Credit: NASA television
The spacewalkers completed all scheduled tasks, including another go through the starboard Solar Alpha Rotary Joint, and did some get-ahead act as well. on Nov. 20.
After making the airlock and setting up equipment and tools, Whitson removed, vented and stowed an ammonia jumper, section of a cooling loop that is temporary. Getting rid of it permitted connection associated with the hookup for the permanent Loop B ammonia loop that is cooling a 2nd fluid tray regarding the place’s outside.
Tani meanwhile configured tools, then eliminated two fluid caps to get ready for connection of this permanent cooling Loop B.
Like in the Nov. 20 spacewalk, most of this outing ended up being dedicated to make use of a fluid tray, this time around Harmony’s Loop B fluid tray. The 300-pound, 18.5-foot tray was relocated from the short-term place in the S0 truss, during the center regarding the section’s primary truss, to Destiny, atop the port avionics tray.
They used a kind of relay technique, one moving ahead and attaching tethers to be ready to receive the tray, then the other moving farther forward to take the next handoff as they did with the Loop A tray Nov. 20.
When they reached the installation point they bolted down the tray, then connected its six fluid line connections. Cooling Loop B had been effectively restarted later on when you look at the spacewalk. Whitson configured two Loop B heater cables.
Whitson relocated to the starboard side of Harmony. There she eliminated a thermal address of a centerline berthing digital camera system and eight launch restraints from latch petals of the typical berthing process. The digital camera and petals can help dock and initially attach the European area Agency laboratory Columbus, allowing bolts become driven to secure it to its permanent section house throughout the STS-122 objective of Atlantis month that is next.
Image at remaining: Spacewalker Dan Tani works in between your Harmony Node 2 additionally the Destiny laboratory. Credit: NASA television
Tani moved to just the right region of the main truss and eliminated among the 22 covers associated with how to buy a wife the starboard Solar Alpha Rotary Joint (SARJ) and did an assessment like the one he did during his spacewalk through the STS-120 mission. He took digital photos and examples of metallic shavings he discovered here. He described some areas to be abraded.
Whitson meanwhile installed the final staying connection for the facility to Shuttle energy Transfer System.
That get ahead task finished connections enabling shuttles Discovery and Endeavour to get place energy while docked at Pressurized Mating Adapter-2. She then joined up with Tani in the starboard SARJ, and offered more terms from the SARJ, which was indeed vibration that is showing increased energy usage.
Tani bagged and stowed the SARJ address outside of the airlock, making the joint designed for a video clip study by camera in the place’s robotic Canadarm2. That study will undoubtedly be done following the STS-122 objective and certainly will include one or more complete rotation for the suspect joint, which includes skilled vibration and increased electric present draw.
Tani relocated something bag and relocated an articulated portable base discipline to your forward end of Harmony as get-ahead tasks. A crew equipment translation aid light she had removed during a previous spacewalk to clear the way for other activities as another Whitson reinstalled on Destiny.
Whitson and Tani did the cleanup that is standard and then joined the airlock. The start of its repressurization marked the end that is official of spacewalk.