Thursday, March 19, 2009

Space Shuttle Discovery STS-119 - Astronauts Begin First Spacewalk

Note: This Post on top today - Scroll below for newer postings
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Astronauts Begin First Spacewalk
Thursday, March 19, 2009
2:oopm CDT
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Astronauts aboard space shuttle Discovery and the International Space Station awoke at 8:13 a.m. EDT to "Que Bandera Bonita" by Jose Gonzalez, played for astronaut Joseph Acaba.
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Today's top task is attaching the S6 truss segment to the far right side of the station's truss, or backbone. Robotic arm operators in the station will move the 31,000 pound segment into position and spacewalkers Steve Swanson and Richard Arnold will bolt it in place and make the necessary electrical and data connections to activate its power and cooling systems.
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The Mission’s First Spacewalk began today at 1:13 p.m. EDT and is planned to last 6 ½ hours.
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MISSION UPDATE:
9:30pm CDT
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Today’s Spacewalk Completed at 7:23pm EDT
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Astronauts today installed the International Space Station's final truss segment, Starboard 6, containing the fourth pair of solar arrays. Once the solar array wings are unfurled, the segment will provide the final complement of power to the station.
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After station robotic arm drivers John Phillips and Koichi Wakata guided the truss into position, spacewalkers Steve Swanson and Richard Arnold connected bolts to permanently attach S6 to S5. The spacewalkers plugged in power and data connectors to the truss, prepared a radiator to cool it, opened boxes containing the new solar arrays and deployed the Beta Gimbal Assemblies containing masts that support the solar arrays. Mission Control in Houston deployed the radiator and the stage is set for solar array wing deploy on Friday at 10:58 a.m. EDT.
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Today's spacewalk lasted six hours, seven minutes. It was Swanson's third spacewalk and Arnold's first, and the 121st spacewalk in support of station assembly, totaling about 762 hours.
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Info from the NASA.gov website
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Mission Update:
Friday,
March 20, 2009
8:21pm CDT
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Crew Preparing for Saturday Spacewalk - Solar Arrays Deployed
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In preparation for Saturday's spacewalk, mission specialists Steve Swanson and Joseph Acaba reviewed spacewalk procedures at 7:43 p.m. EDT and will "camp out" overnight in the Quest airlock beginning at 10:08 p.m. The International Space Station crew goes to sleep at 11:13 p.m. followed by the shuttle crew at 11:43 p.m.
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The space station has its final pair of solar panels stretching 240 feet tip to tip after a lessons-learned flawless deploy earlier Friday. The orbiting complex now has nearly an acre’s worth of U.S. arrays producing 120 kilowatts of usable electricity - doubling the amount available for science operations to 30 kilowatts.
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Info from the NASA.gov website
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Note:
* Second
scheduled Spacewalk this Saturday
* Third
and final scheduled Spacewalk on Monday
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I’ll be posting on the Mission & Spacewalks over the next few days so check back!!!
GOD SPEED to the Crew of STS-119 Discovery...
AubreyJ.........

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