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Submitted by Arthur - N1ORC

NASA HSF News Digest       Volume 01 : Number 074
Date: Fri, 19 Jul 2002 16:57:48 -0500 (CDT)
From: info@jsc.nasa.gov
Subject: International Space Station Status Report #32

5 p.m. CDT, Friday, July 19, 2002 
Expedition 5 Crew 

Expedition 5 crewmembers, Commander Valery Korzun, Astronaut Peggy
Whitson and Cosmonaut Sergei Treschev, wrapped up a busy week of
successful science and maintenance work, a week that saw completion of
one major repair task on the environmental control system of the
International Space Station.

Korzun and Whitson worked together for four hours on Monday and another
four hours on Tuesday to replace the Desiccant/Sorbent Bed Assembly of
the Carbon Dioxide Removal Assembly (CDRA) in the U.S. laboratory
Destiny.  There are two such beds in CDRA.  The one replaced had not
functioned properly since its launch in Destiny on Discovery's STS-98
mission in February 2001 because a valve between the desiccant and
sorbent sides had stuck in the open position.  The second bed continued
to function, and a carbon dioxide scrubber in the Russian segment also
was available. 

Whitson and Korzun overcame or worked around a series of minor
difficulties during the removal and replacement.  Engineers and flight
controllers on the ground are reactivating the Atmosphere Revitalization
Rack where the CDRA is situated.  The CDRA will be turned on next Tuesday
and operated for several days to verify the success of the replacement.

Crewmembers performed an emergency medical operations drill on Wednesday,
designed to keep them sharp in emergency medical procedures and to ensure
that equipment is optimally stowed and available.

Whitson also worked with a balky spacesuit battery recharger.  Her inputs
were valuable to engineers on the ground and flight controllers who
devised procedures that should fix the problem, the failure of a battery
in the device to discharge before receiving a new charge.  She also
regenerated one of the spacesuit Metox carbon dioxide removal canisters.

Scientific experiments performed by the crew included work with the
Microencapsulation Electrostatic Processing experiment, enclosing a drug
or drugs in microballoons.  Crewmembers also tended the Advanced
Astroculture experiment, which grows soybeans in space with an eye to
improving their oil, protein or carbohydrate content.  The Microgravity
Science Glovebox was used in the Solidification Using a Baffle In Sealed
Ampoules experiment, designed to understand the motion in melted fluids
to improve semiconductors.

All three crewmembers participated on Tuesday in an Educational Outreach
project called Toys in Space.  They operated toys, among them a
boomerang, a jump rope and marbles, to demonstrate scientific principles.
 The demonstrations were in conjunction with questions from children at
the Houston Museum of Natural Science and the American Museum of Natural
History in New York City.  

Russian officials have decided to perform a reboost of the International
Space Station on Aug. 1, to put it at an optimal altitude for arrival of
the next Progress unpiloted Russian supply spacecraft, and the next Soyuz
crew return vehicle this fall.

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 Friday, July 26, or sooner
if events warrant.

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