STS-92 Day 8 Highlights
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- On Wednesday, October 18, 2000, 5:30 a.m. CDT, STS-92 MCC Status Report # 14
- Mission Specialists Jeff Wisoff and Mike Lopez-Alegria will team up
once again today to conduct the final of four consecutive space walks
designed to set the stage for the arrival of the first resident crew
next month and the future expansion of the International Space
- In what have been termed "clear the deck" tasks by lead EVA Officer
Darryl Schuck, Lopez-Alegria and Wisoff, with an assist from robot arm
operator, Koichi Wakata, will remove a grapple fixture from the Z1
Truss, verify the operation of the latch assembly that will capture
the solar array truss when it arrives in December, deploy a tray that
will be used to provide power to the U.S. Laboratory "Destiny" when it
arrives early next year, and test the performance of the manual
berthing mechanism latches that will support Destiny.
- If time permits, the space walkers will also evaluate two safety
protocols - testing a small nitrogen-powered back pack that could
allow astronauts to navigate back to the station or shuttle in the
event their safety tethers became disconnected, and demonstrating
techniques for assisting an incapacitated astronaut during a space
- Lopez-Alegria, Wisoff and Wakata will team up to deploy the Z1 tray,
as Lopez-Alegria on the robot arm holds the tray in place while Wisoff
removes a total of four pins and then raises the tray from its
position on the truss. Lopez-Alegria will guide the tray into its
fully deployed position and will hold it in place to allow Wisoff to
install the pins and latches that will hold it in place.
- Wisoff will cycle the latches on the capture assembly for the solar
arrays by using a pistol grip tool and making more than 125 turns to
open the latches. He will then close and reopen the latches to ensure
they are working properly and will leave the RTAS capture latch -
known as "the claw" - ready to support the installation of the P6
solar arrays by the STS-97 crew in December. He also will verify the
operation of the manual berthing mechanism capture system on the truss
that will be used during installation of the Destiny laboratory module
early next year.
- Following today's space walk, Commander Brian Duffy and Pilot Pam
Melroy will once again pulse Discovery's reaction control system jets
in a series of small firings to gently raise the station's orbit to
prepare it for the arrival of the first resident crew in early
- The next Mission Control Center status report will be issued at 7
p.m. or as events warrant.
- On Wednesday, October 18, 2000, 7:30 p.m. CDT, STS-92 MCC Status Report # 15
- Mission Specialists Jeff Wisoff and Mike Lopez-Alegria each jetted
slowly through space above Discovery's cargo bay today, demonstrating
a small rescue backpack that could help a drifting astronaut regain
the safety of the spacecraft.
- Each astronaut performed one gentle 50-foot flight with the nitrogen
powered SAFER (for Simplified Aid for EVA Rescue). Each remained
attached to the shuttle with a long tether during the test, and was
accompanied by the other astronaut, moving with him on the end of
Discovery's robotic arm.
- This was the last of four successful spacewalks over four days that
prepared the International Space Station for the arrival of its first
crew next month. It also paved the way for future station
expansion. The Wednesday spacewalk began at 10 a.m. CDT and ended at
4:56 p.m., lasting 6 hours and 56 minutes. It brings the total
spacewalk time for the STS-92 mission to 27 hours and 19 minutes, and
for all 10 space station assembly spacewalks on five shuttle missions
to 69 hours and 34 minutes.
- Lopez-Alegria and Wisoff, with Koichi Wakata operating the arm,
completed a series of wrap-up tasks during the EVA. They removed a
grapple fixture from the Z1 truss, opened and closed a latch assembly
that will hold the solar array truss when it arrives in December,
deployed a tray that will be used to provide power to the
U.S. Laboratory Destiny, scheduled to be attached to the station early
next year, and tested the manual berthing mechanism latches that will
- Wisoff opened and closed the latches on the capture assembly for the
P6 solar arrays using a pistol grip tool. With it he made more than
125 turns to open the latches, then closed and reopened them. He left
the capture latch, called "the claw," ready to receive the
solar arrays, to be installed by the STS-97 crew in December.
- An exercise to test techniques for returning an incapacitated
astronaut to the air lock was cancelled because of time constraints.
- After the space walk, Commander Brian Duffy and Pilot Pam Melroy
completed their third and final reboost of the space station, firing
Discovery's reaction control system jets in a series of 18 pulses over
a 30-minute period to gently raise the station's orbit to prepare it
for the arrival of the first resident crew in early November. This
reboost added another 1.7 statute miles to the station's average
altitude, making the total for the mission just over 5 miles.
- The next Mission Control Center status report will be issued at 6
a.m. Thursday, or as events warrant.
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