Sunday features the second EVA of Discovery’s mission. This morning’s job is to prep a girder-like structure (supporting solar panels) to move to a new spot on the Station. NASA reports:
Astronauts Go to Work Outside Space Station
Image Above: STS-120 spacewalkers exit the Quest airlock to begin the second spacewalk of the mission. Image credit: NASA TV
Astronauts are working outside the International Space Station for the second time during the STS-120 mission. The main objective of today’s spacewalk, which began at 5:32 a.m. EDT, is the preparation of the Port 6, or P6, truss segment for its relocation.
Parazynski and Tani began the spacewalk heading to the section where the P6 truss was attached to the Z1 truss. Once there they disconnected the umbilicals and bolts holding the two trusses together. Mission Specialists Stephanie Wilson and Doug Wheelock used the station robotic arm to remove the P6. They will place the solar array section in a temporary holding position for tonight before handing it off to the shuttle’s robotic arm Monday morning.
Tani performed a couple of inspections requested by mission managers. He inspected handrails on a Crew and Equipment Translation Aid cart for sharp edges. He also inspected a rotary joint used to rotate solar arrays on the starboard side of the truss. The joint has been showing some increased friction lately, though Tani was unable to identify the cause. Mission Control requested Tani take photographs of the rotary joint for further examination on the ground.
Parazynski is outfitting the Harmony node with handholds and other equipment. Both spacewalkers will finish up their tasks when they install a new grapple fixture to Harmony. The station’s robotic arm will use the grapple fixture next month when it reinstalls Harmony to the front of the Destiny laboratory.
The excursion is scheduled to last 6 hours and 40 minutes. Mission Specialist Paolo Nespoli will be the spacewalk coordinator, assisting the spacewalkers with their tasks.
Flight Day 4 pics and Flight Day 5 videos are up at the JSC Gallery. Discussion here. Status Report #11 here. More video clips here. Check the links at right for play-by-play and NASA TV.





