Overseas area Station Commander Peggy Whitson and Flight Engineer Dan Tani completed a 7-hour, 4-minute spacewalk at 11:54 a.m. EST Saturday, continuing the outside outfitting for the Harmony node with 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 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 creating equipment and tools, Whitson removed, vented and stowed an ammonia jumper, section of a short-term cooling loop. Removing it permitted connection of this hookup associated with permanent Loop B ammonia cooling cycle on a 2nd fluid tray from the section’s outside.
Tani meanwhile configured tools, then eliminated two fluid caps to organize for connection of this permanent cooling Loop 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 had been relocated from the short-term place regarding the S0 truss, in the center for the section’s main truss, to Destiny, atop the port avionics tray.
Because they did because of the Loop The tray Nov. 20, they utilized a type of relay strategy, one going ahead and connecting tethers to get ready to get the tray, then other moving further forward to simply take the next handoff.
After they reached the installation point they bolted down 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 your 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 procedure. The digital digital 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 throughout the STS-122 objective of Atlantis month that is next.
Image at left: Spacewalker Dan Tani works in between your Harmony Node 2 together with Destiny laboratory. Credit: NASA television
Tani moved to the proper region of the primary truss and removed among the 22 covers for the starboard Solar Alpha Rotary Joint (SARJ) and did an assessment much like the one he did during their spacewalk through the mission that is STS-120. He took electronic images and examples of metallic shavings he discovered here. He described some areas as being 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 in the starboard SARJ, and offered more terms in the SARJ, which was indeed showing vibration and increased power usage.
Tani bagged and stowed the SARJ address away from airlock, making the joint designed for a video clip study by digital camera regarding the place’s robotic Canadarm2. That study will likely to 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 draw that is current.
Tani relocated an instrument case and relocated an articulated foot that is portable to your forward end of Harmony as get-ahead tasks. A crew equipment translation aid light she had removed brides match info free 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 entered the airlock. The start of its repressurization marked the formal end for the spacewalk.