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STS-135 MCC Status Report No. 09 (Forwarded)



 
 
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Old July 13th 11, 05:03 PM posted to sci.space.news
Andrew Yee[_1_]
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Default STS-135 MCC Status Report No. 09 (Forwarded)

Mission Control Center
Houston, Texas

STS-135 MCC Status Report No. 09
Tuesday, July 12, 2011, 6 p.m. CDT

Two International Space Station astronauts completed a six-hour, 31-minute
spacewalk at 2:53 p.m. CDT Tuesday, retrieving a failed pump module for
return to Earth, installing two experiments and repairing a new base for the
station's robotic arm.

Flight Engineers Mike Fossum and Ron Garan used that arm, Canadarm2, in
their first and most lengthy task, retrieval of the failed 1,400-pound pump
module from the station's cooling system that failed last year. Garan rode
the arm to the pump module's stowage rack where he and Fossum removed it.

Still on the arm, operated by Atlantis Pilot Doug Hurley and Mission
Specialist Sandra Magnus in the station's cupola, Garan took the pump module
to a carrier in Atlantis' cargo bay. There Fossum bolted it into place for
the ride home.

Coached by intravehicular officer and Atlantis Mission Specialist Rex
Walheim, with help from spacewalk capcom and astronaut Steve Bowen in the
station flight control room, the spacewalkers moved on to their next task,
installation of the Robotic Refueling Mission experiment. The experiment is
designed to help in development of ways to robotically refuel satellites in
space.

Fossum was making his seventh spacewalk and Garan his fourth (all with
Fossum). They removed the refueling experiment from the cargo bay. Fossum,
now on the arm, carried the experiment to a platform on Dextre, the Special
Purpose Dexterous Manipulator.

Fossum removed the foot restraint he and Garan had used at the end of the
Canadarm2, then moved to the front of the Zarya module. There he freed a
wire stuck in one latch door at a data grapple fixture installed during the
STS-134 mission in May. The fixture can serve as a base for Canadaram2,
considerably extending its range of operation.

Meanwhile, Garan deployed a materials experiment also installed during
STS-134, on a carrier on the station's starboard truss. The eighth in a
series of station materials experiments, it focuses on optical reflector
materials. It was not deployed during the previous flight because of
concerns about outgasing from insulation on the nearby Alpha Magnetic
Spectrometer experiment, also installed during the earlier mission.

Back together again, the two spacewalkers moved on to Pressurized Mating
Adaptor 3 on the Tranquility node. They installed an insulating cover on the
end of the PMA, an area exposed to considerable sunshine.

Inside the shuttle-station complex, transfer of material from the Raffaello
multipurpose logistics module began. The work to unload the more than 9,400
pounds of supplies and equipment brought up by Raffaello and then repack it
with 5,700 pounds of equipment, supplies and trash to return home will
continue for much of Atlantis stay at the station.

The next status report will be issued after crew wakeup or earlier if
warranted. The crew is scheduled to awaken just before 1:30 a.m. Wednesday.

 




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