There are 2 messages totalling 65 lines in this issue

Topics of the day:

1. STS-134 MCC Status Report #21
2. STS-134 MCC Status Report #22

Date: Thu, 26 May 2011 11:11:38 -0500 From: info@JSC NASA GOV Subject: STS-134 MCC Status Report #21

STS-134 Report #21 11 a m CDT Thursday, May 26, 2011 Mission Control Center, Houston, Texas

HOUSTON � Endeavour crew members spent much of their day on late inspection of the shuttle�s thermal protection system and preparations for the fourth and final spacewalk of their visit to the International Space Station

Pilot Greg Johnson and Mission Specialists Mike Fincke and Andrew Feustel used the shuttle arm with the 50-foot orbiter boom sensor system to survey the right wing Mission Specialist Roberto Vittori, Feustel and Greg Chamitoff looked at the shuttle�s nose cap Johnson, Vittori and Chamitoff wound up the survey with inspection of the left wing, completed at 1:16 a m CDT

The images from the inspection were sent to the ground for examination by experts Because the boom will be left on the space station, the inspection was done while the shuttle was still docked The 50-foot boom will be available as an extension of the station�s Canadarm2

Fincke and Chamitoff will do the spacewalk, scheduled to begin about 11:45 p m Thursday Feustel, who participated in the first three spacewalks, helped prepare spacesuits and configure tools He will be intravehicular officer for the spacewalk

The entire crew gathered for an hour-long spacewalk procedure review at the end of their workday Fincke and Chamitoff will spend the night in a reduced-pressure Quest airlock campout to reduce the nitrogen content of their blood

The in-suit light exercise protocol, successfully used for the same purpose before the third spacewalk, is not being employed for the fourth, because it requires greater use of carbon-dioxide-removing lithium hydroxide canisters The carbon dioxide sensor in Chamitoff�s suit failed during the first spacewalk Continuing with the campout is a conservative approach, giving spacewalkers an additional 40 minutes of carbon dioxide scrubbing capability, and was part of the pre-flight plan to prepare for the last spacewalk

Spacewalk objectives include stowing the boom on the station truss and replacing an electrical flight grapple fixture on one end with a power and data grapple fixture, working on a spare arm for Dextre, the Canadian Special Purpose Dexterous Manipulator, and completing hookup of the new Canadarm2 base on the Zarya module

At about 10 p m Wednesday Kelly talked with representatives of four Tucson, Ariz , television stations A little after 4:40 a m the shuttle and station crews held the traditional joint news conference

The next status report will be issued after crew wakeup or earlier if warranted

#

NASA Johnson Space Center Mission Status Reports and other information are available automatically by sending an Internet electronic mail message to listserv@listserver jsc nasa gov In the body of the message (not the subject line) users should type "subscribe hsfnews" (no quotes) This will add the e-mail address that sent the subscribe message to the news release distribution list The system will reply with a confirmation via e-mail of each subscription Once you have subscribed you will receive future news releases via e-mail

Date: Thu, 26 May 2011 20:37:09 -0500 From: info@JSC NASA GOV Subject: STS-134 MCC Status Report #22

STS-134 Report #22 8 p m CDT Thursday, May 26, 2011 Mission Control Center, Houston, Texas

HOUSTON � The final spacewalk to be performed by shuttle crew astronauts is planned today Mission Specialists Greg Chamitoff and Mike Fincke will perform the historic spacewalk

The crews of space shuttle Endeavour and Expedition 28 woke at 6:58 p m CDT to a modified version of the song �Fun, Fun, Fun� with shuttle-themed lyrics, played for all six STS-134 crew members

Fincke and Chamitoff are set to begin the mission�s fourth and final spacewalk at 11:46 p m It is scheduled to last approximately six and a half hours

The focus of the extravehicular activity is to stow the shuttle�s 50-foot boom on the right-side truss on a permanent stowage fixture, retrieve the grapple fixture from the station's left-side truss and use it as a replacement for the grapple fixture currently on the boom

The two spacewalkers also will work on a spare arm for Special Purpose Dexterous Manipulator (SPDM/Dextre) replacing fasteners that were used for its delivery to the station

Four hours and 47 minutes into the spacewalk, the 1,000th hour of spacewalking for assembly and maintenance of the International Space Station will have been reached

Station crew members Commander Andrey Borisenko, and Flight Engineers Ron Garan and Alexander Samokutyaev will continue with station maintenance and support shuttle crew activities Garan will also assist with spacewalk preparations

The next status report will be issued Friday afternoon, or earlier if warranted

#

NASA Johnson Space Center Mission Status Reports and other information are available automatically by sending an Internet electronic mail message to listserv@listserver jsc nasa gov In the body of the message (not the subject line) users should type "subscribe hsfnews" (no quotes) This will add the e-mail address that sent the subscribe message to the news release distribution list The system will reply with a confirmation via e-mail of each subscription Once you have subscribed you will receive future news releases via e-mail

End of HSFNEWS Digest - 26 May 2011 to 27 May 2011 (#2011-63)

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