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Report #37 
4 p.m. CDT, Friday, Aug. 23, 2002 
Mission Control Center, Houston, Texas 

The Expedition Five crew spent a large portion of its week preparing for
the next scheduled spacewalk. Commander Valery Korzun and Flight Engineer
Sergei Treschev plan to leave the Pirs Docking Compartment of the
International Space Station around 12:00 a.m. Central time (0500 GMT)
Monday, Aug. 26, to begin a six-hour spacewalk. While Korzun and Treschev
work outside, Flight Engineer Peggy Whitson will tend to space station
systems and assist the spacewalkers as necessary. She will also maneuver
the Canadarm2 to provide camera views of the cosmonauts for the two
mission control centers. 

Whitson completed the first spacewalk of her career last Friday with
Korzun, spending four hours and 25 minutes outside the orbiting
laboratory. Monday's spacewalk will be Korzun's fourth and Treschev's

Korzun and Treschev have a variety of tasks to complete Monday morning,
including attaching hardware to the exterior of the Zarya module that
will be used for tethers and other equipment during future spacewalks;
replacing Japanese materials experiment panels on Zvezda, which measure
the effects of atomic oxygen in low Earth orbit and collect small pieces
of space debris; attaching new plates for the Russian Kromka experiment,
which are used to collect and study the residue emitted by Zvezda's jet
thrusters; and installing two additional amateur radio antennas on Zvezda
to improve contacts with ham radio operators on Earth. The two
spacewalkers will also photograph each of these activities for engineers
on the ground.

In preparation for Monday's spacewalk, Korzun and Treschev took part in
an experiment called PuFF that is being used to look for any changes in
crewmembers' lungs that may occur during a long-duration spaceflight. The
two cosmonauts tested their lungs Friday using equipment in the Human
Research Facility Rack and will test them again after the spacewalk. 

Information on the crew's activities aboard the space station, future
launch dates, as well as station sighting opportunities from anywhere on
the Earth, is available on the Internet at:


Details on station science operations can be found on an Internet site
administered by the Payload Operations Center at NASA's Marshall Space
Flight Center in Huntsville, Ala., at:


The next ISS status report will be issued on Monday, Aug. 26, after the
next station spacewalk, or sooner, if events warrant.

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