ISS Crews Preparing for Today’s Spacewalk

Aug 11, 2007
ISS Crews Preparing for Today’s Spacewalk
The International Space Station's robotic arm moves the S5 truss. Image: NASA TV

The STS-118 and Expedition 15 crews continue preparations for today’s spacewalk to install the Starboard 5 (S5) truss onto the International Space Station. STS-118 Mission Specialists Rick Mastracchio and Dave Williams are slated to begin their orbital stroll at 12:31 p.m. EDT.

The S5 will be attached to the Starboard 4 segment about 1:56 p.m. with the spacewalking duo guiding station robot arm operator Charles Hobaugh, STS-118’s pilot, as he moves the S5 to the attachment point. The spacewalkers will then bolt it into place and make power and data connections.

The other major task during the spacewalk is the retraction of a radiator on the Port 6 (P6) truss. After the radiator is folded, Mastracchio and Williams will secure it. The P6 will be relocated from atop the station to the end of the Port 5 truss during a future mission.

The excursion is scheduled to last 6.5 hours. Mission Specialist Tracy Caldwell is the spacewalk coordinator, and Expedition 15 Flight Engineer Clay Anderson is assisting Hobaugh at the controls of the station’s Canadian-built robotic arm.

Meanwhile, the Station-to-Shuttle Power Transfer System, which was activated after Friday’s docking, will be shut down during the spacewalk. 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 is expected to be made Sunday.

Source: NASA

Explore further: Scars on Mars from 2012 rover landing fade—usually

add to favorites email to friend print save as pdf

Related Stories

The first space walk happened 50 years ago, and nearly ended in disaster

Mar 18, 2015

It is 50 years since humans first encountered space – not Sputnik's first orbit, nor Yuri Gagarin's first spaceflight – but the first time a crew member stepped out from their spacecraft's relative protection and immersed themselves in the cold, hostile emptiness of the vacuum. ...

Recommended for you

Europe resumes Galileo satnav deployment (Update)

Mar 27, 2015

Europe resumed deployment of its beleaguered Galileo satnav programme on Friday, launching a pair of satellites seven months after a rocket malfunction sent two multi-million euro orbiters awry.

More evidence for groundwater on Mars

Mar 27, 2015

Monica Pondrelli and colleagues investigated the Equatorial Layered Deposits (ELDs) of Arabia Terra in Firsoff crater area, Mars, to understand their formation and potential habitability. On the plateau, ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.