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Forum:Space Shuttles - Space Station
Topic:ISS Expedition 36: Russian spacewalk (8/22/13)
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The WAL low-gain antennas are used for proximity and rendezvous operations with the European Space Agency's Automated Transfer Vehicle (ATV).

Afterward the two spacewalkers will transfer the communications experiment hardware from its temporary stowage location to the ladder outside the Pirs hatch and split up for the next set of tasks.

As Yurchikhin makes his way to Zvezda's hull to begin the relocation of a foot restraint, he will take a look at the three remaining antenna cover locations on the forward end of that module. Once that is complete, he will remove the foot restraint and install it on the new EVA workstation he and Misurkin set up earlier.

Meanwhile, Misurkin will head over to the Poisk Mini-Research Module-2. There he will use a test kit to collect a particulate sample from under a swath of thermal insulation near the module's hatch. He also will photograph the SKK materials exposure experiment and associated cabling along Poisk.

After Misurkin completes the installation of some gap spanners on the port side of Zvezda, he and Yurchikhin will rejoin to transfer the laser communications experiment hardware and the Poisk test samples into the Pirs airlock.

For the duration of the spacewalk, Cassidy and station commander Pavel Vinogradov will be isolated to the Poisk module and their Soyuz TMA-08M spacecraft, while flight engineers Karen Nyberg of NASA and Luca Parmitano of the European Space Agency will be free to move about the U.S. segment of the complex.

This is the 173rd spacewalk in support of space station assembly and maintenance, the eighth in Yurchikhin's career and the third for Misurkin. Both cosmonauts are wearing blue-striped Orlan spacesuits outfitted with helmet cameras.

Their previous excursion outside the station, a seven hour, 29 minute marathon on Aug. 16 focusing on preparations for the future arrival of the "Nauka" Multipurpose Laboratory Module, was the longest spacewalk in history conducted by a pair of Russian cosmonauts.

Robert Pearlman
Cosmonauts complete spacewalk, mark Flag Day

Two Russian cosmonauts wrapped up a 5 hour, 58 minute spacewalk at 12:32 p.m. CDT (1732 GMT) on Thursday (Aug. 22), completing the replacement of a laser communications experiment with a new platform for a small optical camera system, the installation of new spacewalk aids and an inspection of antenna covers.

The spacewalk proceeded mostly as planned, despite encountering a problem while trying to install the camera platform.

ISS Expedition 36 flight engineers Fyodor Yurchikhin and Alexander Misurkin began to install the platform before noticing that its base plate was not properly aligned. Initially, Mission Control told the two spacewalkers to stand down, and Yurchikhin returned the platform to the Pirs airlock.

However, after determining the alignment issue could be corrected after its installation, flight controllers directed the spacewalkers to retrieve the platform from the airlock and install it at as planned on the starboard side of Zvezda.

Two cameras, scheduled to be delivered to station aboard a Progress cargo craft in November, will be mounted on the platform during a spacewalk planned for December.

Misurkin and Yurchikhin then headed to various locations on Zvezda to inspect six antennas that are used to assist in providing navigation data during the rendezvous and docking of European Automated Transfer Vehicle cargo ships. The inspection involved work to check out the antenna covers and tighten screws on any loose covers.

One of the covers was observed floating away from the station on Monday (Aug. 19), and Russian station officials wanted to determine its origin and insure that the remaining covers are secure.

Due to time constraints, the relocation of a foot restraint from the hull of Zvezda to the new spacewalk workstation was deferred to a later excursion.

Yurchikhin and Misurkin unfurled a Russian flag near the end of the spacewalk in commemoration of Russian Flag Day.

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