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good afternoon and welcome back to the

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sts-133 pre-flight briefings here this

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hour we're going to be talking about the

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two spacewalks planned for discovery's

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mission and to tell us about them we

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have the leed space

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space walk officer for the mission art

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thomason we'll let art talk art start

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with opening remarks and then we'll take

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questions

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hello my name is art thomason today i'll

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be walking through the two spacewalks

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that we have planned for sts-133

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but before we roll the video for that

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i'd like to introduce the eva team and

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can i get the graphics for the crew

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our lead spacewalker for the mission

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will be tim copra

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tim this will be tim's second set of

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evas

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he'll be wearing the suit with the red

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stripes designating him as ev1 or the

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lead spacewalker

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alvin drew will be our ev2 this will be

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al's second flight this will actually be

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his first time to venture out the door

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on a spacewalk i'll be wearing the suit

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with the white stripes

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inside the shuttle we'll have nicole

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stott she'll be managing the spacewalk

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and she'll be reading tim and al's

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procedures walking them through the

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steps of their task nicole has previous

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eva experience on sts-128

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also inside will be mike barrett mike

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will be helping the crew members get

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suited up and out the door before each

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eva

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mike will also be operating the space

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station robotic arm in support of both

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eva 1 and eva2

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i'd also like to introduce the team that

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i'll be working with on the ground

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during the spacewalks got one of the

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best teams in the business i'll have

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ernie bell devin bulch joni davidson jay

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burger and scott ray

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and now for sts-133

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we've had quite a few changes this

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started out as a no eva mission about

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halfway through the training flow we

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picked up

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two space walks and then about three

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fourths of the way through the training

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flow we changed the content quite a bit

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due to the pump module failure on space

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station

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as a result the team has done an

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outstanding job of adapting to all the

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changes that have come their way so i'd

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just like to thank the crew and the eva

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team for all the hard work and long

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hours that they've put in to get us to

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the point where we are today

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with that i would like to roll the video

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both crew members will be starting out

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outside the u.s joint airlock

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they'll head out the nest they'll hand

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out the necessary bags that are required

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for the eva

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and then they'll get to work on the

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native side of the space station they'll

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be working between the u.s laboratory

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and node one

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they'll be installing an extension cable

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this will provide an extension to the

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power outlet j612

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this extension is important because you

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won't be able to access this port

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as it is today once the permanent

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multi-purpose module is installed after

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the cva

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we also want access to this to provide

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contingency power to node 3 in the event

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that needs to be demated for a

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from there both crew members will head

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off and start preparing

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to return the failed pump module to

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tim will begin setting up the space

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and off in the distance there on the

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mobile transporter you can see the

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failed pump module that will be returned

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later in the eva

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tim will be installing a portable foot

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restraint on the end of the robotic arm

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he'll then ingress that foot restraint

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meanwhile i'll be working on the port

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cedar cart while he'll be retrieving two

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bags that were left outside on the pump

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module evas he'll stall instead he will

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and then carry that bundle down to

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now this is the permanent home for the

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pump module external storage platform 2

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once al gets back to external storage

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platform 2

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he'll stow the portable foot restraint

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and then begin routing the vent tool and

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vent tool extender

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that was contained in one of those bags

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this will allow them to vent the 10

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pounds of ammonia that's currently in

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the pump module at the beginning of eva2

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meanwhile a tim will have translated up

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to the mobile transporter and will

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retrieve the failed pump module he'll

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reorient it

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to get it in the correct orientation to

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be installed on external stowage

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here you can see tim working the neutral

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buoyancy lab with the mock-up that we

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train with

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the real pump module weigh about 800

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tim and i will work together to get this

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partially installed at which point

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they'll remove the adjustable grapple

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bar and temp stow that the adjustable

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grapple bar was used to temporarily stow

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the pump module on the mobile

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transporter

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i'll then drive four bolts to secure the

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pump module into place mate the vent

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tool and close the thermal blanket over

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tim and i will then work together to

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stow the adjustable grapple bar on the

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flex hose rotary coupler

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this is the permanent stowage location

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for this tool until it's needed on a

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from there the crew members

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will

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begin to tear down the arm

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tim will remove the portable foot

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restraint and stow it on as external

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stowage platform 2 for use on eva2 when

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and then owl will retrieve the portable

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foot restraint that he got from the

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cedar cart earlier now he'll be playing

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a bit of a shell game with foot

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restraints here once he arrives at z1

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he'll stow the foot restraint from the

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seat of cart he'll then take some time

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to open two thermal blankets that are

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covering orbital replacement units

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by opening the thermal blankets it will

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provide dexter access in case these

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orbital replacement units need to be

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changed out robotically by dexter

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he'll then remove a tool stanchion from

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the portable foot restraint that's going

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to need to come inside move it over to

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the one he just brought up

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and he'll retrieve

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a portable foot restraint that contains

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a heat shield on the bottom this heat

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shield prevents this foot restraint from

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being installed in some of the work

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worksite interfaces on the outside of

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space station

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this is the last foot restraint that has

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its heat shield so i'll take it put it

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back in the air lock and between evas

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they'll remove this heat shield bring it

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from there both crew members will head

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out to the starboard truss near express

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logistics carrier number four that was

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installed earlier in the mission

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there they'll be installing a camera

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wedge this wedge will can't the camera

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and camera stanchion inboard to allow

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access to the orbital replacement unit

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site that you see in the background

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here you can see them removing the

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camera and stanchion in the neutral

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buoyancy lab

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once that's removed tim will hold the

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camera steady while al installs a wedge

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in the installation location they'll

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then reinstall the camera to the wedge

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as you see them doing here and now it'll

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be in it's a new configuration canted

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outboard with plenty of room to still

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open replacement units on these fram

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sites

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at this point if everything's going well

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we think we'll have time to perform a

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couple of get aheads the primary get

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ahead that we would like to get

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accomplished on this flight is

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installing

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rail stubs

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these stubs will extend the rails that

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the ceda card and mobile transporter

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translate on and will allow them to go

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to the starboard most work site this

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will allow robotics operations farther

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outboard on the starboard truss

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here you can see them installing the

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and there's also a zenith stub that

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they'll be installing

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now the nader stub has a built-in stop

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on it this stop will prevent the

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acetocard and mobile transporter from

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traveling too far outboard off the end

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currently there are in place two stops

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that can now be released

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this is also a get ahead task that we

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hope to get done

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there's the tether shuttle stop that

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prevents an eva tool from going too far

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outboard

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here you can see

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tim rotating out the tether shuttle stop

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and then we also have the mobile

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transporter stop or mt stop and that we

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this prevents the seat of cars or mobile

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transporter from going too far outboard

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with that both crew members will

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translate back to the us joint airlock

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and perform their final task this is

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jax's message in a bottle they'll use

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this to capture the vacuum of space and

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okay i mentioned on eva 1 that they will

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be setting up a vent tool and vent tool

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extender this will be used to

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vent the 10 pounds of ammonia that's

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currently inside the pump module now the

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reason we have this tool is to uh

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is to protect the crew from the actual

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venting that takes place and from the

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ammonia so you can see this end is going

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and once it's attached to the pump

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module

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we'll have another end this is called

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the vent tool and then we'll have the

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this end will attach to the vent tool

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extender you can see the two pieces mate

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here they'll be locked into place

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and then we have approximately 15 feet

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total of length

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and this will be the nozzle

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that's at the end the ammonia will be

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vented from and so this nozzle we have

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the option of clocking it in many

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different directions in 30 degree

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increments with an eva change out

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mechanism or ecom fitting

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and that will connect to a handrail

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outside of the lab using a mutt end

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effector

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see these jaws will then clamp around a

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handrail on the outside of space station

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and so again this is used to

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protect the crew and sensitive hardware

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on the space station

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from ammonia

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and so with that that leads us into our

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first task for eva2 so let's roll the

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both crew members will be starting out

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outside the u.s joint airlock once again

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they'll retrieve the necessary bags for

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and then tim will grab the portable foot

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restraint that had the heat shield

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removed during the eva or between the

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evas

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he'll stow that foot restraint outside

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and now it will be able to be installed

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in any of the worksite interfaces

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outside of space station

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i will head over to the pump module and

279
00:11:07,269 --> 00:11:04,000
get ready for the venting task

280
00:11:08,710 --> 00:11:07,279
he'll ingress a portable foot restraint

281
00:11:11,829 --> 00:11:08,720
and open the thermal blanket on the

282
00:11:15,750 --> 00:11:13,509
then he'll throw the bail on the vent

283
00:11:17,590 --> 00:11:15,760
tool and we expect all the ammonia to be

284
00:11:19,030 --> 00:11:17,600
vented out in approximately 10 seconds

285
00:11:20,150 --> 00:11:19,040
but we're going to leave the veil the

286
00:11:21,829 --> 00:11:20,160
valve open

287
00:11:25,750 --> 00:11:21,839
for two minutes just to make sure that

288
00:11:29,430 --> 00:11:27,190
at that point al will start cleaning up

289
00:11:32,710 --> 00:11:29,440
the vent tool and vent tool extender

290
00:11:34,310 --> 00:11:32,720
he'll put them in their appropriate bags

291
00:11:36,389 --> 00:11:34,320
and he'll return those bags to the

292
00:11:37,750 --> 00:11:36,399
zenith side of the airlock

293
00:11:39,509 --> 00:11:37,760
the second bag that you see here

294
00:11:41,350 --> 00:11:39,519
contains the pump module jumper that was

295
00:11:47,350 --> 00:11:41,360
used during the increment pump module

296
00:11:52,470 --> 00:11:49,670
here you can see al stowing those bags

297
00:11:54,230 --> 00:11:52,480
on the zenith side of the joint airlock

298
00:11:57,430 --> 00:11:54,240
he'll then translate out starboard to

299
00:11:58,949 --> 00:11:57,440
express logistics carrier number four

300
00:12:01,509 --> 00:11:58,959
and there he'll be removing a thermal

301
00:12:03,030 --> 00:12:01,519
blanket that was required for launch but

302
00:12:04,710 --> 00:12:03,040
now that

303
00:12:06,230 --> 00:12:04,720
this oru is receiving our orbital

304
00:12:08,230 --> 00:12:06,240
replacement unit is receiving space

305
00:12:10,470 --> 00:12:08,240
station power this blanket is no longer

306
00:12:13,990 --> 00:12:10,480
required so he'll roll that up and stow

307
00:12:17,509 --> 00:12:15,509
meanwhile tim will be setting up the

308
00:12:21,269 --> 00:12:17,519
space station robotic arm on the

309
00:12:24,870 --> 00:12:22,710
there he'll be installing a portable

310
00:12:26,470 --> 00:12:24,880
foot restraint

311
00:12:28,790 --> 00:12:26,480
and he'll get ready to remove the

312
00:12:36,870 --> 00:12:28,800
lightweight adapter plate assembly from

313
00:12:40,870 --> 00:12:38,790
so here you can see tim

314
00:12:42,310 --> 00:12:40,880
working in the neutral buoyancy lab

315
00:12:44,389 --> 00:12:42,320
he'll have to rotate this lightweight

316
00:12:45,670 --> 00:12:44,399
adapter plate assembly 180 degrees in

317
00:12:47,829 --> 00:12:45,680
order to get it in the correct

318
00:12:50,069 --> 00:12:47,839
orientation to be stowed in the shuttle

319
00:12:52,150 --> 00:12:50,079
payload bay

320
00:12:54,310 --> 00:12:52,160
now this was part of a material science

321
00:12:57,030 --> 00:12:54,320
experiment the other two components have

322
00:12:58,550 --> 00:12:57,040
been brought down this is the third and

323
00:13:00,629 --> 00:12:58,560
final component that needs to be brought

324
00:13:02,389 --> 00:13:00,639
to the ground and contains about 10 of

325
00:13:04,069 --> 00:13:02,399
the data for the experiment

326
00:13:06,470 --> 00:13:04,079
this experiment was originally launched

327
00:13:08,069 --> 00:13:06,480
on sts-123

328
00:13:10,310 --> 00:13:08,079
here you can see tim

329
00:13:12,150 --> 00:13:10,320
riding the arm into the payload bay

330
00:13:14,310 --> 00:13:12,160
he'll drive a single bolt to secure the

331
00:13:18,310 --> 00:13:14,320
lightweight adapter plate assembly to

332
00:13:22,470 --> 00:13:19,590
he'll then ride the space station

333
00:13:23,910 --> 00:13:22,480
robotic arm over to dexter

334
00:13:25,430 --> 00:13:23,920
canada's robot

335
00:13:30,550 --> 00:13:25,440
here you see a view out of the cupola

336
00:13:33,910 --> 00:13:32,069
once he arrives at dexter he'll be

337
00:13:35,590 --> 00:13:33,920
installing a camera

338
00:13:39,750 --> 00:13:35,600
this will be the final component to

339
00:13:43,509 --> 00:13:41,350
he'll then remove a thermal blanket on

340
00:13:46,310 --> 00:13:43,519
dexter this blanket was needed for

341
00:13:47,509 --> 00:13:46,320
launch but now if dexter's working hard

342
00:13:49,030 --> 00:13:47,519
on a given day

343
00:13:53,430 --> 00:13:49,040
may cause things to get too warm so

344
00:14:00,949 --> 00:13:55,189
from there he'll ride the robotic arm

345
00:14:05,670 --> 00:14:03,110
see the arm translation path here coming

346
00:14:07,990 --> 00:14:05,680
past the orbiter

347
00:14:11,430 --> 00:14:08,000
once he's back at columbus he'll remove

348
00:14:16,230 --> 00:14:13,189
and reconfigure his tethers and be

349
00:14:17,590 --> 00:14:16,240
tethered back to space station

350
00:14:21,910 --> 00:14:17,600
he'll install that portable foot

351
00:14:25,430 --> 00:14:23,430
and then you'll head back to the robotic

352
00:14:27,430 --> 00:14:25,440
arm one more time where he'll install a

353
00:14:29,670 --> 00:14:27,440
lens cover on one of the cameras on the

354
00:14:31,430 --> 00:14:29,680
elbow of the arm now this cover will

355
00:14:33,590 --> 00:14:31,440
protect the lens from the plumes of

356
00:14:39,110 --> 00:14:33,600
visiting vehicles when they arrive and

357
00:14:42,949 --> 00:14:41,430
meanwhile al will translate over to the

358
00:14:44,710 --> 00:14:42,959
port truss

359
00:14:46,069 --> 00:14:44,720
al has quite a translation path he goes

360
00:14:49,990 --> 00:14:46,079
almost all the way starboard then all

361
00:14:53,189 --> 00:14:51,110
here on the porch truss he'll be

362
00:14:57,990 --> 00:14:53,199
installing a light this light will

363
00:14:59,509 --> 00:14:58,000
illuminate the solar alpha rotary joint

364
00:15:01,030 --> 00:14:59,519
we'll provide lighting during night

365
00:15:03,269 --> 00:15:01,040
passes for the eb crew when they're

366
00:15:05,030 --> 00:15:03,279
working in this area

367
00:15:06,870 --> 00:15:05,040
and then translate up to the zenith part

368
00:15:08,949 --> 00:15:06,880
of the truss

369
00:15:10,550 --> 00:15:08,959
once he gets there he'll be reinstalling

370
00:15:12,470 --> 00:15:10,560
a thermal bootie

371
00:15:13,670 --> 00:15:12,480
over a fluid quick disconnect

372
00:15:15,350 --> 00:15:13,680
this is something that was noticed that

373
00:15:17,350 --> 00:15:15,360
was out of configuration so he'll

374
00:15:19,110 --> 00:15:17,360
reinstall that to maintain the

375
00:15:20,629 --> 00:15:19,120
appropriate temperature for this fluid

376
00:15:22,629 --> 00:15:20,639
quick disconnect

377
00:15:24,470 --> 00:15:22,639
he'll then translate down

378
00:15:25,670 --> 00:15:24,480
to the nader side of the radiator where

379
00:15:28,150 --> 00:15:25,680
he'll be

380
00:15:29,749 --> 00:15:28,160
troubleshooting two radiator grapple

381
00:15:31,430 --> 00:15:29,759
stow beams that were installed on

382
00:15:32,550 --> 00:15:31,440
sts-131

383
00:15:34,310 --> 00:15:32,560
and when these were installed they

384
00:15:35,670 --> 00:15:34,320
weren't as secure as we expected them to

385
00:15:37,189 --> 00:15:35,680
be so i'll be going through some

386
00:15:39,189 --> 00:15:37,199
troubleshooting steps to get them

387
00:15:40,949 --> 00:15:39,199
re-secured

388
00:15:42,230 --> 00:15:40,959
these would be used in the event that we

389
00:15:45,110 --> 00:15:42,240
needed to

390
00:15:47,430 --> 00:15:45,120
change out a radiator

391
00:15:48,870 --> 00:15:47,440
i will then head over to node three

392
00:15:51,350 --> 00:15:48,880
there he'll be removing a thermal

393
00:15:53,189 --> 00:15:51,360
blanket now this blanket has a couple of

394
00:15:55,670 --> 00:15:53,199
connectors underneath it that have

395
00:15:57,110 --> 00:15:55,680
created a tent and because of this tint

396
00:15:59,509 --> 00:15:57,120
configuration

397
00:16:01,030 --> 00:15:59,519
we're worried that it could get too hot

398
00:16:02,470 --> 00:16:01,040
the connectors can get too warm so by

399
00:16:05,430 --> 00:16:02,480
removing this blanket we're mitigating

400
00:16:08,470 --> 00:16:06,710
from there both crew members will head

401
00:16:10,389 --> 00:16:08,480
off to their final task

402
00:16:13,749 --> 00:16:10,399
tim will head over to dexter where he'll

403
00:16:15,590 --> 00:16:13,759
be installing a lens cover on dexter

404
00:16:17,350 --> 00:16:15,600
again to protect

405
00:16:22,870 --> 00:16:17,360
this camera and lens

406
00:16:27,990 --> 00:16:25,670
an owl head to the mobile transporter

407
00:16:29,509 --> 00:16:28,000
or the poa as we call it the payload oru

408
00:16:31,110 --> 00:16:29,519
accommodation

409
00:16:36,230 --> 00:16:31,120
and he'll be installing a lens cover in

410
00:16:40,710 --> 00:16:37,990
from there both crew members will head

411
00:16:42,230 --> 00:16:40,720
back to the u.s joint airlock

412
00:16:48,470 --> 00:16:42,240
where they'll ingress and complete their

413
00:16:51,910 --> 00:16:50,389
that completes my briefing for today i'd

414
00:16:52,949 --> 00:16:51,920
like to hand things back over to the

415
00:16:54,710 --> 00:16:52,959
moderator

416
00:16:57,350 --> 00:16:54,720
okay we'll take questions now starting

417
00:16:58,949 --> 00:16:57,360
here at jsc first and then moving on to

418
00:17:00,949 --> 00:16:58,959
kennedy space center and nasa

419
00:17:02,550 --> 00:17:00,959
headquarters uh just a

420
00:17:06,710 --> 00:17:02,560
reminder to state your name and

421
00:17:12,789 --> 00:17:10,069
uh mark caro for aviation week the

422
00:17:15,029 --> 00:17:12,799
the power cord that gets installed uh

423
00:17:18,150 --> 00:17:15,039
early in the first eva i guess i was a

424
00:17:20,470 --> 00:17:18,160
little confused as to

425
00:17:21,990 --> 00:17:20,480
who's getting the emergency power and

426
00:17:25,110 --> 00:17:22,000
then you mentioned something about in

427
00:17:27,429 --> 00:17:25,120
case of a contingency uh spacewalk

428
00:17:29,430 --> 00:17:27,439
and it almost sounded like you were

429
00:17:31,590 --> 00:17:29,440
talking about if they had to remove

430
00:17:33,029 --> 00:17:31,600
one of the nodes or something for that

431
00:17:35,590 --> 00:17:33,039
and i i just wonder if you could connect

432
00:17:38,310 --> 00:17:35,600
those dots sure so

433
00:17:39,430 --> 00:17:38,320
j612 currently powers the airlock shell

434
00:17:40,710 --> 00:17:39,440
heaters

435
00:17:42,710 --> 00:17:40,720
so what's going to happen is that

436
00:17:44,630 --> 00:17:42,720
they're going to re remove the airlock

437
00:17:47,110 --> 00:17:44,640
shell heater power and install an

438
00:17:48,710 --> 00:17:47,120
extension cable and connect airlock

439
00:17:51,029 --> 00:17:48,720
shell heater back to that extension

440
00:17:52,710 --> 00:17:51,039
cable so as far as power is concerned

441
00:17:54,630 --> 00:17:52,720
it's going to be the same configuration

442
00:17:56,789 --> 00:17:54,640
but now at this point you have a cable

443
00:17:58,310 --> 00:17:56,799
that you're able to access in case you

444
00:17:59,750 --> 00:17:58,320
need to connect to it so you have to

445
00:18:01,750 --> 00:17:59,760
break the connection with the airlock

446
00:18:04,870 --> 00:18:01,760
shell heater power and reconnect and the

447
00:18:06,789 --> 00:18:04,880
reason we want this is when node 3

448
00:18:08,950 --> 00:18:06,799
was brought to space station

449
00:18:11,029 --> 00:18:08,960
it actually had two launch to activation

450
00:18:11,750 --> 00:18:11,039
cables that provided temporary power for

451
00:18:13,510 --> 00:18:11,760
it

452
00:18:16,150 --> 00:18:13,520
there is a case where we would have to

453
00:18:18,390 --> 00:18:16,160
change out a heat exchanger and if that

454
00:18:19,909 --> 00:18:18,400
happened we'd have to demate node three

455
00:18:22,150 --> 00:18:19,919
and would at which point it would have

456
00:18:23,990 --> 00:18:22,160
no power so we would use this launched

457
00:18:29,990 --> 00:18:24,000
activation cable to repower it during

458
00:18:35,590 --> 00:18:32,870
hi robert perlman with collectspace.com

459
00:18:38,310 --> 00:18:35,600
with regards to message in the bottle um

460
00:18:40,310 --> 00:18:38,320
i realize it's a it's an educational or

461
00:18:42,870 --> 00:18:40,320
symbolic activity

462
00:18:44,950 --> 00:18:42,880
so how does it has it rank in terms of

463
00:18:47,510 --> 00:18:44,960
importance in terms of nasa's agreement

464
00:18:50,710 --> 00:18:47,520
with jaxa to have it done if you run

465
00:18:53,110 --> 00:18:50,720
into a length of time another task

466
00:18:55,430 --> 00:18:53,120
does that just get pushed off the table

467
00:18:57,590 --> 00:18:55,440
and um and following up on that since

468
00:18:59,510 --> 00:18:57,600
this it seems to be pretty rare that an

469
00:19:01,190 --> 00:18:59,520
educational or symbolic activities are

470
00:19:03,110 --> 00:19:01,200
scheduled during an eva

471
00:19:04,630 --> 00:19:03,120
can you think of any other examples from

472
00:19:05,830 --> 00:19:04,640
recent time that

473
00:19:07,909 --> 00:19:05,840
they've done something like this in

474
00:19:09,669 --> 00:19:07,919
space thanks i can't think of any other

475
00:19:10,630 --> 00:19:09,679
recent examples

476
00:19:12,710 --> 00:19:10,640
it is

477
00:19:15,029 --> 00:19:12,720
a relatively high priority task and that

478
00:19:16,710 --> 00:19:15,039
we plan to get it done on this mission

479
00:19:18,070 --> 00:19:16,720
if we don't have time to get it done at

480
00:19:20,310 --> 00:19:18,080
the beginning of eva 1 then we'll

481
00:19:22,150 --> 00:19:20,320
perform it first thing on eva 2 and it

482
00:19:24,150 --> 00:19:22,160
is a very quick task

483
00:19:26,070 --> 00:19:24,160
just probably about 10-15 minutes at

484
00:19:27,830 --> 00:19:26,080
most they'll close the valve on it and

485
00:19:30,950 --> 00:19:27,840
take a photo so

486
00:19:34,310 --> 00:19:32,789
um i was confused bill harwood cbs i was

487
00:19:35,750 --> 00:19:34,320
confused about the timing of the ammonia

488
00:19:38,950 --> 00:19:35,760
building is that yes when does that

489
00:19:40,710 --> 00:19:38,960
happen that happens first thing on eva2

490
00:19:42,870 --> 00:19:40,720
and the uh

491
00:19:44,549 --> 00:19:42,880
the tool where where did you say that

492
00:19:46,390 --> 00:19:44,559
the jet would be pointed toward i don't

493
00:19:52,549 --> 00:19:46,400
understand it will be appointed nader

494
00:19:55,590 --> 00:19:53,830
let me ask one more i'm sure along those

495
00:19:57,110 --> 00:19:55,600
same lines though um where will the eva

496
00:19:59,830 --> 00:19:57,120
ev guys be

497
00:20:02,149 --> 00:19:59,840
when the stuff starts spewing

498
00:20:03,830 --> 00:20:02,159
well tim ev1 he's going to be on the lab

499
00:20:05,590 --> 00:20:03,840
and translating out to columbus at that

500
00:20:07,669 --> 00:20:05,600
point and then i will be right near the

501
00:20:09,830 --> 00:20:07,679
pump module so the pump module will be

502
00:20:11,190 --> 00:20:09,840
used to kind of shield him uh from the

503
00:20:14,870 --> 00:20:11,200
plume but the plane will be pointed

504
00:20:18,149 --> 00:20:16,390
mark kirkman of the interspace news just

505
00:20:19,590 --> 00:20:18,159
to follow up on that one questioning um

506
00:20:21,350 --> 00:20:19,600
you said it take you expect it today

507
00:20:23,029 --> 00:20:21,360
about 10 seconds uh you may have also

508
00:20:24,390 --> 00:20:23,039
mentioned what i'm trying to find out is

509
00:20:28,149 --> 00:20:24,400
how much ammonia do you think is in

510
00:20:29,350 --> 00:20:28,159
there it's about 10 pounds 10 pounds

511
00:20:30,950 --> 00:20:29,360
that was it

512
00:20:32,549 --> 00:20:30,960
okay i think that's all the questions

513
00:20:34,870 --> 00:20:32,559
here in the room for now so we'll go

514
00:20:38,549 --> 00:20:34,880
next to

515
00:20:44,149 --> 00:20:38,559
nasa headquarters for questions there

516
00:20:48,149 --> 00:20:45,590
hello this is marcia dunham the

517
00:20:51,510 --> 00:20:48,159
associated press you mentioned that the

518
00:20:53,990 --> 00:20:51,520
vent tool has a 15 foot

519
00:20:56,630 --> 00:20:54,000
give on it is it going to be

520
00:20:58,630 --> 00:20:56,640
unreal to its full length or how will

521
00:21:00,070 --> 00:20:58,640
that work yeah it will be extended to

522
00:21:02,710 --> 00:21:00,080
pretty much its full length it will be

523
00:21:05,590 --> 00:21:02,720
routed along external stowage platform 2

524
00:21:09,350 --> 00:21:05,600
and then over to the lab handrail 237 i

525
00:21:14,230 --> 00:21:12,310
and and how close uh i i'm sorry i sort

526
00:21:16,630 --> 00:21:14,240
of missed part of the explanation for

527
00:21:19,669 --> 00:21:16,640
how all this is going to work el drew is

528
00:21:21,430 --> 00:21:19,679
in charge at this point so he will be 15

529
00:21:23,110 --> 00:21:21,440
feet away um

530
00:21:24,950 --> 00:21:23,120
operating the tool but then you

531
00:21:27,750 --> 00:21:24,960
mentioned he's going to be behind the

532
00:21:29,669 --> 00:21:27,760
pump so i'm visually not getting this

533
00:21:31,830 --> 00:21:29,679
at the pump module where one end is

534
00:21:33,669 --> 00:21:31,840
connected and the other end will be

535
00:21:35,669 --> 00:21:33,679
about 15 feet away

536
00:21:36,950 --> 00:21:35,679
and that will be connected to the lab

537
00:21:38,470 --> 00:21:36,960
that's where the actual plume is going

538
00:21:40,310 --> 00:21:38,480
to be coming out so the ammonia will

539
00:21:43,430 --> 00:21:40,320
travel down the tube out to out the

540
00:21:46,630 --> 00:21:44,870
and so you think there's very very

541
00:21:48,390 --> 00:21:46,640
little um

542
00:21:50,789 --> 00:21:48,400
opportunity for either sensitive

543
00:21:52,710 --> 00:21:50,799
equipment or a spacewalker to walker to

544
00:21:54,789 --> 00:21:52,720
get sprayed and just in case are you

545
00:21:56,470 --> 00:21:54,799
going to use your usual clean off plans

546
00:21:58,310 --> 00:21:56,480
if that happens that's correct we'll be

547
00:22:00,630 --> 00:21:58,320
we're prepared for the ammonia

548
00:22:02,230 --> 00:22:00,640
decontamination if that's needed

549
00:22:03,430 --> 00:22:02,240
and of course that's any time you're

550
00:22:05,510 --> 00:22:03,440
dealing with pneumonia that's always a

551
00:22:08,310 --> 00:22:05,520
possibility using the vent tool and vent

552
00:22:13,590 --> 00:22:08,320
tool extender we are reducing the risk

553
00:22:16,950 --> 00:22:15,270
okay i think that's the last of the

554
00:22:21,350 --> 00:22:16,960
questions that kennedy space center will

555
00:22:25,430 --> 00:22:23,830
hi this is denise ciao from space.com my

556
00:22:27,430 --> 00:22:25,440
question is sort of related to marsha's

557
00:22:29,110 --> 00:22:27,440
but um just wanted to know what the main

558
00:22:31,029 --> 00:22:29,120
risks are with the venting of the

559
00:22:33,110 --> 00:22:31,039
ammonia is it um

560
00:22:35,190 --> 00:22:33,120
the plume is it leaks in the hose or

561
00:22:37,110 --> 00:22:35,200
what are the main concerns there

562
00:22:38,950 --> 00:22:37,120
i think the main concern is is the plume

563
00:22:40,470 --> 00:22:38,960
and also cleaning up the vent tool and

564
00:22:42,710 --> 00:22:40,480
vent tool extender after it's done if

565
00:22:44,070 --> 00:22:42,720
there's any residual ammonia and so if

566
00:22:45,590 --> 00:22:44,080
the crew members do get ammonia on them

567
00:22:46,630 --> 00:22:45,600
it's something that's happened before we

568
00:22:49,029 --> 00:22:46,640
just want to make sure we don't bring

569
00:22:50,710 --> 00:22:49,039
that inside so we have procedures to

570
00:22:52,470 --> 00:22:50,720
make sure that we don't do that we'll

571
00:22:54,230 --> 00:22:52,480
have one crew member come over do the

572
00:22:56,870 --> 00:22:54,240
inspection of the affected crew member

573
00:22:58,710 --> 00:22:56,880
if they see any ammonia they'll then use

574
00:23:00,230 --> 00:22:58,720
a warm metal tool to sublimate any

575
00:23:01,750 --> 00:23:00,240
ammonia off

576
00:23:02,950 --> 00:23:01,760
at that point we'll start a bake out

577
00:23:05,350 --> 00:23:02,960
calculator

578
00:23:07,270 --> 00:23:05,360
this will allow enough time for the any

579
00:23:08,789 --> 00:23:07,280
residual ammonia to bake off the crew

580
00:23:10,310 --> 00:23:08,799
member and so that'll depend on the

581
00:23:12,070 --> 00:23:10,320
locations they're at outside of space

582
00:23:13,909 --> 00:23:12,080
station as to how long this actually

583
00:23:15,190 --> 00:23:13,919
this bake out needs to happen but uh

584
00:23:17,430 --> 00:23:15,200
they'll be able to perform their their

585
00:23:19,190 --> 00:23:17,440
nominal eba tasks during this time and

586
00:23:20,870 --> 00:23:19,200
when they come back inside

587
00:23:22,870 --> 00:23:20,880
they'll perform a test where they have a

588
00:23:25,990 --> 00:23:22,880
drager tube that will record the amount

589
00:23:27,830 --> 00:23:26,000
of ammonia in the airlock and if it's

590
00:23:29,750 --> 00:23:27,840
not within acceptable limits i will have

591
00:23:31,909 --> 00:23:29,760
the crew come back outside and perform

592
00:23:33,430 --> 00:23:31,919
an additional bake out so all this takes

593
00:23:34,390 --> 00:23:33,440
time we'll make sure to protect enough

594
00:23:35,990 --> 00:23:34,400
time

595
00:23:39,669 --> 00:23:36,000
for the worst case to happen and get

596
00:23:41,350 --> 00:23:39,679
this additional bake out done if needed

597
00:23:42,789 --> 00:23:41,360
okay i think that was in the questions

598
00:23:44,789 --> 00:23:42,799
at headquarters any other questions here

599
00:23:46,390 --> 00:23:44,799
in the room

600
00:23:49,029 --> 00:23:46,400
okay i think that will wrap up our

601
00:23:51,310 --> 00:23:49,039
briefing then coming up next on nasa tv

602
00:23:53,029 --> 00:23:51,320
we'll be showing some b-roll from the

603
00:23:55,510 --> 00:23:53,039
sts-133

604
00:23:57,029 --> 00:23:55,520
pre-flight materials and then coming up

605
00:23:59,350 --> 00:23:57,039
at

606
00:24:01,029 --> 00:23:59,360
1 pm central time we'll be back with a

607
00:24:03,269 --> 00:24:01,039
look at the station's first robotic crew

608
00:24:05,909 --> 00:24:03,279
member robonaut 2. that'll be followed

609
00:24:07,669 --> 00:24:05,919
at 2 pm by the sts-133 crew news

610
00:24:09,830 --> 00:24:07,679
conference and of course you can find

611
00:24:10,830 --> 00:24:09,840
out about all of these activities online

612
00:24:13,269 --> 00:24:10,840
at