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 of this Harmony node in its brand brand new place at the U.S. laboratory Destiny.
Image at right: Whitson and Tani connect a fluid tray into 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 creating equipment and tools, Whitson removed, vented and stowed an ammonia jumper, element of a temporary cooling loop. Removing it permitted connection for the hookup associated with permanent Loop B ammonia cooling cycle on a 2nd fluid tray from the section’s outside.
Tani meanwhile configured tools, then removed two fluid caps to organize for connection of this cooling that is permanent 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 ended up being relocated from the short-term place in the S0 truss, during the center associated with section’s primary truss, to Destiny, atop the port avionics tray.
While they did utilizing 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 moving further forward to make the next handoff.
When they reached the installation point they bolted along the tray, then connected its six fluid line connections. 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 removed a thermal address of the centerline berthing digital camera system and eight launch restraints from latch petals of a berthing mechanism that is common. 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 place house through the STS-122 objective of Atlantis month that is next.
Image at remaining: Spacewalker Dan Tani works in between your Harmony Node 2 and also the Destiny laboratory. Credit: NASA television
Tani relocated to the best part associated with primary truss and eliminated one of many 22 covers associated with 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 pictures that are digital examples of metallic shavings he discovered here. Some surfaces were described by him as being abraded.
Whitson meanwhile installed the very last staying connection for 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 during the starboard SARJ, and offered more terms from the SARJ, which was in fact vibration that is showing increased energy usage.
Tani bagged and stowed the SARJ address outside of the airlock, making the joint readily available for a movie study by a mail order wife digital digital camera in the section’s robotic Canadarm2. That study will undoubtedly be done following the STS-122 objective and certainly will include a minumum of one full rotation associated with the suspect joint, which includes skilled vibration and increased electric draw that is current.
Tani relocated something case and relocated an articulated foot that is portable 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 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 end that is official of spacewalk.
