Astronauts Move Carts, Upgrade Communications System; Spacewalk Continues

August 15, 2007
Astronauts Move Carts, Upgrade Communications System; Spacewalk Continues
Expedition 15 Flight Engineer Clay Anderson holds a Crew Equipment Translation Aid cart as he rides on the end of the International Space Station's robotic arm during STS-118's third spacewalk. Image: NASA TV

Astronauts Rick Mastracchio and Clay Anderson are rolling through their scheduled activities as they work outside the International Space Station.

They continued preparations for the relocation of the Port 6 (P6) truss and its solar arrays by moving two Crew Equipment Translation Aid carts along the Integrated Truss Structure rail system. This will allow the station’s arm to perform the P6 relocation work during STS-120. The P6 will be moved from atop the station to the end of the Port 5 truss.

Early in the spacewalk, the duo relocated an antenna from the Port 6 (P6) to the Port 1 (P1) truss. In addition to the antenna relocation, the spacewalkers installed a new transponder and signal processor in an S-band communications system upgrade.

Before the excursion ends, Mastracchio and Anderson will retrieve two materials science experiments from the station’s exterior. The experiments were deployed in August 2006 and will be returned to Earth for analysis. Since the spacewalkers are ahead of the timeline, flight controllers may give them approval to tackle some get-ahead tasks.

Today’s spacewalk is Mastracchio’s third of the mission. Anderson, who arrived at the station in June, conducted his first spacewalk on July 23 with Expedition 15 Commander Fyodor Yurchikhin.

Mission Specialist Tracy Caldwell is the spacewalk coordinator and Pilot Charles Hobaugh is at the controls of the station’s robotic arm.

The spacewalk is slated to end at 5:07 p.m.

Mission managers have determined that damage to a small section of Endeavour’s heat shield poses no threat to crew safety or mission operations. However, they are discussing options for possible repair work that would ensure preparations on the ground for Endeavour’s next flight will go more smoothly. The damage occurred during the climb to orbit on Aug. 8.

Source: NASA

Explore further: Astronaut completes spacewalk right before setting US record

Related Stories

Endeavour Mission to Prep Station for Expanded Crews

November 3, 2008

( -- For years, STS-126 has been planned as the mission that will give the International Space Station the ability to support twice the crew currently living there. But since the most recent inspection of the ...

Three Back-to-Back Spacewalks Coming Up on Station

January 30, 2007

The first of three spacewalks in nine days by International Space Station Commander Michael Lopez-Alegria and Flight Engineer Sunita Williams is scheduled to begin Wednesday at 10 a.m. EST.

NASA weighs repair of jammed pin in third spacewalk

March 22, 2009

Discovery astronauts prepared for a third and final spacewalk Monday, with a busy to-do list that may include unsticking a jammed restraint pin used to clamp a toolbox to the outside of the International Space Station.

Endeavour astronauts wrap up second space walk

May 23, 2011

Two astronauts completed a second of four scheduled space walks of the Endeavour shuttle's final mission to the International Space Station on Sunday, the US space agency said.

ISS Crews Preparing for Today’s Spacewalk

August 11, 2007

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 ...

Recommended for you

The hottest white dwarf in the Galaxy

November 25, 2015

Astronomers at the Universities of Tübingen and Potsdam have identified the hottest white dwarf ever discovered in our Galaxy. With a temperature of 250,000 degrees Celsius, this dying star at the outskirts of the Milky ...

Hubble captures a galactic waltz

November 26, 2015

This curious galaxy—only known by the seemingly random jumble of letters and numbers 2MASX J16270254+4328340—has been captured by the NASA/ESA Hubble Space Telescope dancing the crazed dance of a galactic merger. The ...


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.