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 of this Harmony node with its brand brand new position as you’re 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 consider the starboard Solar Alpha Rotary Joint, and did some get-ahead act as well. on Nov. 20.
After making the airlock and starting tools and equipment, Whitson removed, vented and stowed an ammonia jumper, element of a cooling loop that is temporary. Getting rid of it permitted connection associated with the hookup associated with the permanent Loop B ammonia cooling cycle on 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 cooling that is permanent B.
Like in the Nov. 20 spacewalk, a lot of this outing ended up being devoted to use a fluid tray, this time around Harmony’s Loop B fluid tray. The 300-pound, 18.5-foot tray was relocated from its short-term place in the S0 truss, in the center regarding the place’s primary truss, to Destiny, atop the port avionics tray.
While they did because of the Loop The tray Nov. 20, they utilized a type of relay method, one going ahead and connecting tethers to prepare yourself to get the tray, then other going further forward to make the next handoff.
After they reached the installation point they bolted along the tray, then installed its six line that is fluid. Cooling Loop B had been effectively restarted later on into the spacewalk. Whitson configured two Loop B heater cables.
Whitson relocated to your starboard side of Harmony. There she eliminated a thermal address of the centerline berthing digital camera system and eight launch restraints from latch petals of the berthing mechanism that is common. The camera and petals may help dock and initially attach the European area Agency laboratory Columbus, allowing bolts become driven to secure it to its permanent section house through 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 just the right part regarding the primary truss and eliminated among the 22 covers for the starboard Solar Alpha Rotary Joint (SARJ) and did an examination just 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. Some surfaces were described by him to be abraded.
Whitson meanwhile installed the past 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 section energy while docked at Pressurized Mating Adapter-2. She then joined up with Tani in the starboard SARJ, and offered more terms in the SARJ, which was vibration that is showing increased energy consumption.
Tani stowed and bagged the SARJ address outside of the airlock, making the joint readily available for a video clip study by a digital camera in the section’s robotic Canadarm2. That study is going to be done after the STS-122 objective and can include one or more complete rotation regarding the suspect joint, which includes skilled vibration and increased electric present draw.
Tani relocated an instrument bag and relocated an articulated portable base discipline towards 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 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 end that is official of spacewalk.