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Spacewalkers Getting Ready for Spacewalk



SUBMITED BY ARTHUR N1ORC - AMSAT A/C #31468

* Spacewalkers Getting Ready for Spacewalk*

Image above: Commander Scott Kelly (center) assists Mission Specialist 
Rick Mastracchio (right) and Flight Engineer Clay Anderson with donning 
their spacesuits. Image: NASA TV
TO VIEW IMAGE GO 
TO:http://www.nasa.gov/mission_pages/shuttle/main/index.html

Final preparations are under way for STS-118ís third spacewalk. 
Spacewalkers Rick Mastracchio and Clay Anderson will set the stage for 
future International Space Station assembly during the excursion, which 
is scheduled to begin at 11:01 a.m. EDT.

The spacewalking duo will prepare the Port 6 (P6) truss and its solar 
arrays for relocation from atop of the station to the end of the Port 5 
truss when STS-120 visits later this year. Their tasks include the 
relocation of an antenna from the P6 to the Port 1 (P1) truss, retrieval 
a transponder for return to Earth and the relocation of two rail carts 
on the stationís Integrated Truss Structure. They will install a new 
transponder on the P1, which along with the relocated antenna will 
upgrade the stationís communications capability.

Mastracchio and Anderson will also retrieve two material experiments 
from the stationís exterior. The experiments will be analyzed by 
scientists on Earth.

Todayís spacewalk will be Mastracchioís third of the mission. Anderson, 
who arrived at the station in June, conducted his first spacewalk on 
July 23 with Expedition 15 Commander Fyodor Yurchikhin.

Mission Specialist Tracy Caldwell will resume her role as STS-118ís 
spacewalk coordinator and Pilot Charles Hobaugh will be at the controls 
of the stationís robotic arm.

The spacewalk is slated to last 6.5 hours.
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