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 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 tasks that are scheduled 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 creating equipment and tools, Whitson removed, vented and stowed an ammonia jumper, section of a cooling loop that is temporary. Getting rid of it allowed connection for the hookup of this permanent Loop B ammonia cooling cycle on a 2nd fluid tray from the place’s outside.
Tani meanwhile configured tools, then eliminated two fluid caps to organize for connection of this cooling that is permanent B.
like in the Nov. 20 spacewalk, a lot of this outing had been dedicated to make use of a fluid tray, this time around Harmony’s Loop B fluid tray. The 300-pound, 18.5-foot tray ended up being moved from the short-term place from the S0 truss, in the center of this place’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 along the tray, then connected its six fluid line connections. Cooling Loop B ended up being effectively restarted later on into the spacewalk. Whitson configured two Loop B heater cables.
Whitson relocated to the side that is starboard of. There she buy a mail order bride eliminated a thermal address of a centerline berthing digital camera system and eight launch restraints from latch petals of the berthing mechanism that is common. The digital digital digital camera and petals can help dock and initially attach the European Space Agency laboratory Columbus, allowing bolts become driven to secure it to its permanent place house throughout the STS-122 objective of Atlantis the following month.
Image at remaining: Spacewalker Dan Tani works in involving the Harmony Node 2 as well as the Destiny laboratory. Credit: NASA television
Tani relocated to the proper part for the primary truss and eliminated one of several 22 covers of this starboard Solar Alpha Rotary Joint (SARJ) and did an examination much like the one he did during their spacewalk through the STS-120 mission. He took pictures that are digital examples of metallic shavings he discovered here. He described some areas to be abraded.
Whitson meanwhile installed the very last connection that is remaining the facility to Shuttle energy Transfer System.
That get ahead task finished connections shuttles that are enabling and Endeavour to get place energy while docked at Pressurized Mating Adapter-2. She then joined up with Tani during the starboard SARJ, and offered more terms regarding the SARJ, which was in fact vibration that is showing increased energy usage.
Tani stowed and bagged the SARJ address away from airlock, making the joint readily available for a video clip study with a digital digital digital camera in the place’s robotic Canadarm2. That study will soon be done following the STS-122 objective and certainly will include a minumum of one complete rotation for the suspect joint, which includes skilled vibration and increased electric current draw.
Tani relocated an instrument case and relocated an articulated portable base restraint into the 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 standard cleaning process and then joined the airlock. The beginning of its repressurization marked the formal end associated with spacewalk.