STS-100 Day 7 Highlights
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- On Wedesday, April 25, 2001, 4:00 a.m. CDT, STS-100 MCC Status Report # 12
- The Station's new robotic arm truly will extend the reach of
humans in space today when it hands the 3,000-pound pallet delivering
it to space to the shuttle's robotic arm for transport back to
Earth. The three-hour task is set to begin about 6 a.m.
- While robotic arm operations are underway by Expedition Two
crewmembers Susan Helms and Jim Voss aboard the station, and shuttle
crewmembers Chris Hadfield and Scott Parazynski, the remaining shuttle
and station astronauts and cosmonauts continue the task of unpacking
the Raffaello high-tech moving van. European Space Agency astronaut
Umberto Guidoni is overseeing the unloading of the Italian-built
- Today's wakeup call to the crew was “Con te Partiro”
(“With You I Will Go”), sung by Italian opera singer Andrea
Bocelli. It was played for Guidoni who is from Italy.
- Working at the Robotics Work Station in the Destiny Laboratory,
Helms and Voss will use the new Canadarm2 to maneuver the pallet
within reach of Endeavour's robotic arm under control of Hadfield
and Parazynski. In a reverse passing of the torch, the new arm will
pass the pallet to its older cousin officially beginning the station
arm's own career in space.
- Hadfield and Parazynksi completed connections on the station's
new robotic arm during the second of two planned spacewalks
yesterday. The 7 hour, 40 minute Extravehicular Activity included the
connection of power, data and television cables, which allow the robot
arm to operate from a base on the outside of the Destiny science
- At about 2:30 today, Endeavour's Commander Kent Rominger and
Pilot Jeff Ashby will boost the station's altitude another 2 ˝
miles by firing thruster jets in a precise sequence for about one
hour. With one reboost maneuver completed several days ago, a third
and final identical firing of the reaction control system jets is
- Both spacecraft are in excellent shape orbiting the Earth every 92
minutes at an altitude of 243 statute miles. The next status report
will be issued late today, or if events warrant.
- On Wednesday, April 25, 2001, 8:30 p.m. CDT, STS-100 MCC Status Report # 13
- Troubleshooting efforts designed to restore full capability to the
International Space Station's three redundant command and control
computers continue in Mission Control, even as the 10 astronauts and
cosmonauts on board the outpost worked together today to install new
experiments in the Destiny laboratory.
- Shortly after the ISS crew went to bed last night, the ISS flight
controllers reported a loss of Command and Control Computer number one
(C&C 1), one of three systems management computers on
board. Overnight, flight controllers inititiated a procedure to
re-string those functions through one of the two remaining backup
computers that route data for systems management. This morning when
Expedition Two Flight Engineer Susan Helms sent commands to transfer
data files from the mass storage device, which houses the files for
station systems management for the operation of the robotic work
stations, the command was rejected.
- After initial troubleshooting efforts failed to resolve the problem,
flight controllers once again worked a procedure to re-string data
management functions to the third computer, but the computer problem
continued and flight control teams continued to evaluate the situation
throughout the day.
- Following a power cycle of command and control computer 1, the first
of a series of diagnostic commands - this to turn on and off a light
on board the Destiny laboratory - was successfully transmitted from
the ground to the space station shortly before 7:30 p.m. Overnight the
space station flight control team will attempt to reset the computers
by commanding them from the "primary" to "standby" mode in an effort
to clear any software interaction that might be causing the
problems. If successful, this would allow the Expedition Crew and
ground controllers to again interface with the command and control
computers. The diagnostic troubleshooting will continue through the
- The primary result of today's computer problem was a loss of
communication and data transfer between the Space Station Flight
Control Room and the station. Communication capability was routed
through Endeavour enabling the crew and flight controllers to talk to
- Despite the difficulties encountered with the computer system today,
all systems on board the spacecraft continued to function properly.
- Several of the activities planned for today, including the handoff
of a 3,000 pound pallete from the station's new robotic arm, back to
the shuttle's arm, were postponed until Thursday, pending resolution
of the computer issue. A reboost of the complex, using Endeavour's
small thrusters, also was delayed. The crew members instead turned
their attention to offloading experiment racks and equipment from the
Raffaello logistics module, and transferring the experiments and
hardware to the station.
- Once the computer difficulties are resolved, Helms and crew mate Jim
Voss will command the station's new Canadarm2 to maneuver the pallet
within reach of Endeavour's robotic arm under control of mission
specialists Chris Hadfield and Scott Parazynski.
- Shortly before 7 p.m. Central, Mission Control said goodnight to
both crews following a busy day on orbit. Expedition Two Commander
Yury Usachev, Voss and Helms are slated to wake up about 2:30
a.m. Thursday; the seven astronauts on board Endeavour will receive a
wake-up call from Mission Control about 10 minutes later.
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