EV1: S-Piper (Solid red stripes) & EV3: Kimbrough (Dashed stripes) ::: EVA-2 begins @ 10:45AM PST | EVA-2 ends @ 5:15PM PST || Spacewalk: 6h 45m; 12:58 p.m. to 7:43 p.m. EST
STS-126 MCC Status Report #12 :: 11.20.08 - The second spacewalk by Endeavour astronauts outside the International Space Station will be the focus of today’s activities aboard the two spacecraft. Endeavour crew members, Commander Chris Ferguson, Pilot Eric Boe and mission specialists Don Pettit, Steve Bowen, Heidemarie Stefanyshyn-Piper, Shane Kimbrough and Greg Chamitoff, were awakened at 7:55 a.m. CST. The song was “Summertime,” played for Pettit. It was recorded by Bandella. Members of that group include singer Michi Pettit, Don Pettit’s wife, and astronauts Steve Robinson, Chris Hadfield and Cady Coleman. Spacewalkers Piper and Kimbrough are scheduled to leave the station’s Quest airlock at 12:45 p.m. CST. Piper will wear the red-striped suit while Kimbrough will be in the suit with broken red stripes. Spacewalk tasks include moving two of the small handcarts on the rails of the station’s main truss and lubricating the Latching End Effector (LEE) of the orbiting laboratory’s robotic Canadarm2. Much of the spacewalkers' time will be devoted to the Solar Alpha Rotary Joint on the right side of the station’s main truss. They will continue cleaning and lubricating bearing race rings and the replacement of the joint’s trundle bearing assemblies. The use of the joint has been limited since September 2007 when flight controllers noticed increased power consumption and vibration. The handcarts will be moved to clear the tracks for future work. The LEE lubrication is being done after the snares showed some balkiness on opening and closing. Boe will be the intravehicular officer or spacewalk choreographer, while Pettit and Expedition 18 Flight Engineer Sandra Magnus will operate Canadarm2. Moving of supplies and equipment between Endeavour and the International Space Station and installation in the station of equipment are on today’s agenda for the 10 members of the spacecraft’s crews. All the racks brought to the station in the Multi-purpose Logistics Module Leonardo have been installed in the station, though a considerable amount of equipment and supplies remains to be transferred. Endeavour’s crew is scheduled to go to bed at 11:55 p.m. today and be awakened at 7:55 a.m. Friday. The next shuttle status report will be issued at the end of the crew day, or earlier if events warrant.
ISS FLIGHT DIRECTOR UPDATE (ORBIT #87 :: 06:35AM CST)
ISS FLIGHT DIRECTOR UPDATE REPLAY (ORBIT #88 :: 07:35AM CST)
ENDEAVOUR / ISS CREW WAKE UP (begins FD 7) (ORBIT #89 :: 07:55AM CST)
EVA # 2 PREPARATIONS RESUME (ORBIT #89 :: 08:30AM CST)
MPLM TRANSFERS RESUME (ORBIT #90 :: 10:50AM CST)
EVA # 2 BEGINS (Piper and Kimbrough) (ORBIT #92 :: 12:45PM CST)
CETA CART RELOCATION FROM S1 TO P1 TRUSS (ORBIT #92 :: 1:15PM CST)
SSRMS LEE-A SNARE LUBRICATION / STARBOARD SARJ CLEANING AND
TRUNDLE BEARING ASSEMBLY REPLACEMENT RESUMES (ORBIT #93 :: 03:00PM CST)
RAM INSTALLATION (ORBIT #94 :: 4:30PM CST)
JLP GPS ANTENNA ASSEMBLY BEGINS (ORBIT #96 :: 06:45PM CST)
EVA # 2 ENDS (ORBIT #96 :: 07:15PM CST)
MISSION STATUS BRIEFING (ORBIT #97 :: 09:00PM CST)
ISS CREW SLEEP BEGINS (ORBIT #99 :: 11:25PM CST)
ENDEAVOUR CREW SLEEP BEGINS (ORBIT #99 :: 11:55PM CST)
S126-E-008345 (20 Nov. 2008) --- Astronauts Heidemarie Stefanyshyn-Piper (left) and Shane Kimbrough, both STS-126 mission specialists, participate in the mission's second scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 45-minute spacewalk, Piper and Kimbrough continued the process of removing debris and applying lubrication around the starboard Solar Alpha Rotary Joint (SARJ), replaced four more of the SARJ's 12 trundle bearing assemblies, relocated two equipment carts and applied lubrication to the station's robotic Canadarm2.
STS-126 MCC Status Report #13 :: 11.20.08 - Two down, two to go. Building on Tuesday’s spacewalk experience, Heide Stefanyshyn-Piper and Shane Kimbrough headed out of the International Space Station’s Quest Airlock at 11:58 a.m. CST to continue the process of removing debris around the starboard Solar Alpha Rotary Joint (SARJ) and applying lubrication in an effort to eventually restore it to full functionality. The EVA ended at 6:43 p.m. for a total time of six hours and 45 minutes. As the spacewalkers were finishing up their activities, ground controllers noticed that Kimbrough’s carbon dioxide levels were increasing, so he made his way back to the airlock a few minutes ahead of Piper. Piper and Kimbrough began the second spacewalk by relocating two equipment carts in preparation for February’s installation of the final pair of solar arrays. Once that task was completed, the two applied lubrication to a balky snare on the end of the station’s robotic arm before concentrating on repair of the rotary joint designed to automatically track the sun as the station circles the Earth. The balance of the spacewalk was focused on replacing four more of the 12 trundle bearing assemblies (TBA). One of them was over-torqued during installation, so Piper installed one of the two back-up TBAs instead. The 116th spacewalk dedicated to station assembly and maintenance was the second of the four planned during space shuttle Endeavour’s STS-126 mission. It set the stage for Saturday’s third excursion to complete the cleaning and lubricating process. Station flight controllers plan to briefly test the repair early Sunday morning by commanding the solar array into “auto track” mode to evaluate its performance. On the 10th anniversary since station construction began with launch of the Zarya Control Module atop a Proton rocket from the Baikonur Cosmodrome in Kazakhstan, astronauts and cosmonauts aboard the station worked inside and outside to increase the capability and performance of systems to eventually support doubling the crew size from three to six. Friday at 11:10 a.m., shuttle Commander Chris Ferguson, Pilot Eric Boe and Flight Engineer Steve Bowen will oversee a small reboost of the station’s altitude using spare propellant aboard Endeavour. At 2:05 p.m., both the crews will hold their traditional news conference before reviewing procedures for the third spacewalk scheduled for Saturday afternoon. Mission Control will wake both crews up at 7:55 a.m. Friday to begin Flight Day 8, and the next mission status report will be issued Friday morning or sooner if events warrant.