[sarex] SPACE WALK COMPLETED
azrowe80 at verizon.net
Sat Aug 11 16:01:41 PDT 2007
SUBMITTED BY ARTHUR N1ORC - AMSAT A/C#31468
Mission Specialist Rick Mastracchio and Dave Williams wrapped up
STS-118’s first spacewalk at 6:45 p.m. During the 6-hour, 17-minute
excursion, they successfully installed the Starboard 5 (S5) truss
segment onto the International Space Station and continued preparations
to relocate the Port 6 (P6) truss.
With Mastracchio and Williams assisting, Pilot Charles Hobaugh used the
station’s robotic arm to attach the S5 about 1:35 p.m. The spacewalker
then went to work to permanently bolting the S5 in place on the end of
the Starboard 4 truss segment and then performed some scheduled and
get-ahead tasks to prepare the S5 for the arrival of the Starboard 6
truss next year.
The final major objective of the spacewalk was the retraction of a
radiator on the Port 6 (P6) truss. After the radiator was folded,
Mastracchio and Williams secured it. The P6 will be relocated from atop
the station to the end of the Port 5 truss during a future shuttle mission.
The spacewalk began at 12:28 p.m. and was the first conducted for
Williams and Mastracchio. STS-118 Mission Specialist Tracy Caldwell
coordinated spacewalk activities, and Expedition 15 Flight Engineer Clay
Anderson assisted Hobaugh at the controls of the station’s
Canadian-built robotic arm. Two more spacewalks are currently scheduled
The Station-to-Shuttle Power Transfer System, which was activated after
Friday’s docking, was shut down as a precaution during the spacewalk. It
will be brought back online later today. The transfer system may allow
Space Shuttle Endeavour and the STS-118 crew to stay at the station
longer. A decision on a possible mission extension to 14 days is
expected to be made Sunday.
Animations: + S5 Truss Overview
| + S5 Truss Installation
More information about the SAREX