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*International Space Station Status Report #05-53*
*4 p.m. CDT, Friday, Oct. 28, 2005*
*Expedition 11 Crew*

Commander Bill McArthur and Flight Engineer Valery Tokarev this week 
checked the clothes, tools and plans they will use for a five and 
half-hour spacewalk set for Nov. 7.

McArthur and Tokarev will mark five years of continuous human presence 
on the International Space Station Nov. 2. They are the 12th station 
crew. The first station crew, Commander Bill Shepherd, Flight Engineers 
Sergei Krikalev and Soyuz Commander Yuri Gidzenko, arrived at the 
fledgling complex Nov. 2, 2000. The size of an efficiency apartment at 
that time, the station has grown to a volume larger than the average 
three-bedroom house with the most sophisticated laboratory ever to fly 
in space.

McArthur and Tokarev sent an anniversary greeting this week to crews 
that have flown before and to the thousands that support the station in 
16 nations around the world.

The crew devoted most of their attention to spacewalk preparations 
during the week. On Tuesday, they performed a checkout of the spacesuits 
they will wear. The spacewalk will be the first from the station to use 
U.S. spacesuits and originate from the Quest Airlock since April 2003. 
During their work outside, they will install a television camera 
important for future assembly work on the station's port side truss. 
They also plan to remove an experiment from the station's highest point, 
the top of the P6 truss, that measured the electrical environment around 
the exterior of the station.

On Wednesday, the crewmembers reviewed the procedures they will use to 
put on and take off the spacesuits, reviewed plans for the spacewalk and 
conferred with spacewalk specialists on the ground. On Thursday, they 
suited up and rehearsed the activities inside the station that they will 
perform outside the station Nov. 7. The spacewalk is scheduled to begin 
about 9:30 a.m. EDT with coverage on NASA TV beginning at 8:30 a.m. EDT.

All station systems are operating well. The Elektron oxygen-generating 
system, one of several methods of replenishing oxygen in the station 
cabin atmosphere, is functioning. It was restored to operation Saturday 
when Tokarev performed a maintenance procedure to purge air bubbles from 
its systems. Russian flight controllers completed a test firing of 
thrusters on the Progress cargo craft on Wednesday, thrusters that shut 
off early last week during a planned reboost of the complex. The 
thrusters were fired using a different manifold as Russian controllers 
continued to evaluate a loss of data from the system they had seen 
during the aborted reboost. During the test firing, the engines operated 
normally. They are planned to be used next for a reboost of the complex 
Nov. 10.

NASA’s payload operations team at the Marshall Space Flight Center 
coordinates U.S. science activities on the space station.

For information on the crew's activities aboard the station, future 
launch dates, and station sighting opportunities from anywhere on the 
Earth, visit:


The next ISS status report will be issued Friday, Nov. 4, or earlier if 
events warrant.

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