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EI2GYB > ASTRO 08.09.21 09:57l 77 Lines 3827 Bytes #999 (0) @ WW
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Subj: Cosmonauts on spacewalk run power and data to new space sta
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Sent: 210908/0752Z @:EI2GYB.DGL.IRL.EURO #:14220 BPQ6.0.22
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Cosmonauts on spacewalk run power and data to new space station module
Two cosmonauts completed the first in a series of spacewalks needed to outfit a
newly-added Russian module to the International Space Station.
Expedition 65 flight engineers Oleg Novitskiy and Pyotr Dubrov of the Russian
space agency Roscosmos on Friday (Sept. 2) connected power and data cables for
the new multipurpose laboratory module (MLM), also referred to as "Nauka" (or
"Science" in Russian).
Novitskiy and Dubrov began the seven-hour, 54-minute spacewalk at 10:41 a.m.
EDT (1441 GMT) by opening the hatch on the Poisk mini-research module located
adjacent to the Nauka module on the Russian segment of the space station. After
gathering their tools, the cosmonauts deployed the Strela telescoping boom, a
46-foot-long (14 meters) manually operated crane that they used to traverse the
station's Russian modules.
Retrieving two bundles of four cables each, the spacewalkers connected the U.S.
operating segment's power supply to a patch panel on Nauka and to an interface
panel on the Zarya functional cargo block. The cosmonauts ran into some
difficulty removing protective end caps from some of the cables but were able
to get all of them freed and the cables plugged in.
The eight cables tied Nauka into the U.S. solar panel-fed system that provides
electricity for the entire space station. Electrical checks conducted after the
cables were in place showed a good connection and power flowing as expected.
Novitskiy and Dubrov also began the routing of an ethernet cable to Nauka and
partially installed a new handrail to ease future spacewalks.
Launched on July 21 and autonomously docked to the space station eight days
later, the Nauka module will provide an expanded area to conduct science, as
well as serve as a docking port and airlock for Russian spacewalks. The MLM
will also house additional crew quarters and a toilet for the space station's
residents.
Running slightly behind schedule as a result of the extra work needed to free
the cable caps, Novitskiy and Dubrov were instructed by Moscow Mission Control
to defer installing two handrails and three biological science experiments to a
later spacewalk. Novitskiy and Dubrov wrapped their work by stowing the Strela
boom.
The spacewalk ended at 6:35 p.m. EDT (2235 GMT), as the airlock hatch on the
Poisk module was closed.
Friday's spacewalk was the second for both Novitskiy and Dubrov, who previously
performed their first extravehicular activity (EVA) together in June. The two
are scheduled to work outside the space station again to continue the
outfitting of Nauka on Thursday (Sept. 9).
Novitskiy, who was designated extravehicular crew member 1 (EV1), wore the
Russian Orlan spacesuit with red stripes. Dubrov wore a spacesuit with blue
stripes as EV2.
This was the 242nd EVA in support of International Space Station assembly,
maintenance and upgrades and the 10th spacewalk outside the outpost in 2021.
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