Function

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 associated with Harmony node with its brand brand new place while watching U.S. laboratory Destiny.

Image at right: Whitson and Tani connect a fluid tray to your Destiny Laboratory. Credit: NASA television

The spacewalkers completed all tasks that are scheduled including another consider the starboard Solar Alpha Rotary Joint, and did some get-ahead work as well. on Nov. 20.

After making the airlock and starting equipment and tools, Whitson removed, vented and stowed an ammonia jumper, element of a short-term cooling loop. Getting rid of it permitted connection of this hookup for the permanent Loop B ammonia loop that is cooling a 2nd fluid tray regarding the section’s outside.

Tani meanwhile configured tools, then removed two fluid caps to organize for connection of the cooling that is permanent B.

Like in the Nov. 20 spacewalk, most of this outing ended up being dedicated to utilize a fluid tray, this time around Harmony’s Loop B fluid tray. The 300-pound, 18.5-foot tray had been relocated from its short-term place regarding the S0 truss, during the center regarding the section’s primary truss, to Destiny, atop the port avionics tray.

Because they did with all the Loop A tray Nov. 20, they utilized a type of relay method, one moving ahead and connecting tethers to get ready to get the tray, then your other going further forward to simply take the next handoff.

After they reached the installation point they bolted along the tray, then connected its six line that is fluid. Cooling Loop B had been effectively restarted later on within 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 digital camera system and eight launch restraints from latch petals of the typical berthing procedure. The digital digital camera and petals helps dock and initially attach the European area Agency laboratory Columbus, allowing bolts become driven to secure it to its permanent place house throughout the STS-122 objective of Atlantis month that is next.

Image at remaining: Spacewalker Dan Tani works in involving the Harmony Node 2 therefore the Destiny laboratory. Credit: NASA television

Tani relocated to the proper part of this primary truss and eliminated one of many 22 covers of this starboard Solar Alpha Rotary Joint (SARJ) and did an examination like the one he did during their spacewalk during the mission that is STS-120. He took pictures that are digital samples of metallic shavings he discovered here. Some surfaces were described by him to be abraded.

Whitson meanwhile installed the final connection that is remaining the facility to Shuttle energy Transfer System.

That get ahead task finished connections allowing shuttles Discovery and Endeavour to get section energy while docked at Pressurized Mating Adapter-2. She then joined up with Tani during the find a bride starboard SARJ, and offered more words on the SARJ, which was indeed vibration that is showing increased energy usage.

Tani stowed and bagged the SARJ cover outside of the airlock, leaving the joint designed for a video clip survey by way of camera from the place’s robotic Canadarm2. That study is done following the STS-122 objective and certainly will include a minumum of one complete rotation for the suspect joint, which has skilled vibration and increased electric present draw.

Tani relocated an instrument case and moved an articulated portable base discipline into the forward end of Harmony as get-ahead tasks. As another Whitson reinstalled on Destiny a team gear interpretation help light she had eliminated throughout a past spacewalk to clear the way in which for any other tasks.

Whitson and Tani did the cleanup that is standard and then joined the airlock. The start of its repressurization marked the formal end associated with spacewalk.