Spacewalkers Preparing New Truss for Operation

Sep 12, 2006
Spacewalkers Preparing New Truss for Operation
STS-115 Mission Specialist Joe Tanner exits the hatch at the beginning of the mission's first spacewalk. Photo Credit: NASA TV

With the P3/P4 truss securely attached to the International Space Station, STS-115 Mission Specialists Joe Tanner and Heidemarie Stefanyshyn-Piper are now conducting a spacewalk to prepare the bus-sized structure for operation. The spacewalk began at 5:17 a.m. EDT.

The new truss element, which also includes a set of new solar arrays, was attached to the station at 3:48 a.m. Tanner and Piper began their excursion after bolts connecting the P3/P4 to the P1 truss were tightly secured. The third of four bolts was tightened at 4:35 a.m., officially making the P3/P4 a part of the station.

The new 17.5-ton, 45-foot long truss will provide power, data and communication services for the station. The arrays will be unfurled to a full length of 240 feet on Thursday and will eventually double the station’s power capabilities.

Tasks for today’s spacewalk include the installation of power and data cables between the P1 and P3/P4 structures in preparation for solar array deployment. Tanner and Piper will also release launch restraints on the Solar Array Blanket Box and other tasks to configure the structure for upcoming activities.

The excursion is scheduled to conclude at about 11:37 a.m. Mission Specialist Dan Burbank is coordinating the spacewalk activities. Mission Specialist Steve MacLean and Expedition 13 Flight Engineer Jeff Williams are operating the station’s robotic arm, called Canadarm2. During this mission, MacLean became the first Canadian to operate the Canadarm2 in space. Two more spacewalks are scheduled for STS-115.

Source: NASA

Explore further: Lockheed Martin successfully mates NOAA GOES-R satellite modules

add to favorites email to friend print save as pdf

Related Stories

Advanced communications testbed for Space Station

Feb 14, 2012

(PhysOrg.com) -- New and improved ways for future space travelers to communicate will be tested on the International Space Station.  The SCaN Testbed, or Space Communications and Navigation Testbed - ...

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.

Recommended for you

Winter in the southern uplands of Mars

9 hours ago

Over billions of years, the southern uplands of Mars have been pockmarked by numerous impact features, which are often so closely packed that they overlap. One such feature is Hooke crater, shown in this ...

Five facts about NASA's ISS-RapidScat

9 hours ago

NASA's ISS-RapidScat mission will observe ocean wind speed and direction over most of the globe, bringing a new eye on tropical storms, hurricanes and typhoons. Here are five fast facts about the mission.

User comments : 0