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STS-112 MCC Status Report #15



Submitted by Arthur - N1ORC

STS-112 MCC Status Report #15 
Monday, Oct. 14, 2002  5 p.m. CDT 
Mission Control Center, Houston, Texas 

The third and final spacewalk of the mission concluded at 3:47 p.m.
today, 6 hours and 36 minutes after Dave Wolf and Piers Sellers floated
out of the Quest airlock of the International Space Station and into the
vacuum of space. 

The spacewalk began at 9:11 a.m., and was the 46th devoted to assembly
and maintenance of the station. Making quick work of their first task, to
remove a bolt preventing activation of a cable cutter on the mobile
transporter, Wolf and Sellers moved on to connect ammonia lines and
remove structural support clamps that held the truss in place during
launch. With Sellers and Wolf working well ahead of schedule, an
additional "get ahead" task  installing Spool Positioning Devices on a
pump motor assembly  was added to the spacewalk. The pump motor assembly
helps to circulate ammonia through the station's cooling system.
Throughout today's spacewalk the station's robotic arm, which was used as
a work platform by Sellers and Wolf, was operated by NASA's ISS science
officer Peggy Whitson and Mission Specialist Sandy Magnus. 

Earlier in the day at 6:20 a.m. Commander Jeff Ashby and Pilot Pam Melroy
pulsed Atlantis' thrusters for 35 minutes gently raising the altitude of
the station by 2.3 miles. The combined results of two reboost maneuvers
by Atlantis increased the station's altitude by a total of six miles,
setting the stage for the arrival of a replacement Soyuz spacecraft, set
for launch on October 28. 

Atlantis' crew is scheduled to awaken at 3:46 a.m. Tuesday with the
station crew awakening about one-half hour later. Tuesday will see some
scheduled off-duty time for the two crews, allowing them some final hours
together before Wednesday's scheduled undocking and departure of Atlantis
from the station. 

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