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line with one hour 49 minutes of run

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time

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test bay ups is online with a minimum of

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30 minutes of runtime

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data center ups is online with one

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t minus seven minutes

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t minus six minutes

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central sports systems operator turn on

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the water boost pumps are on

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roger

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t-minus five minutes

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i'm melissa lee and you're joining us

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live

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we're at the northrop grumman facility

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in promontory

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community space center utah florida are

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preparing for the first artemis launch

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and we're here in utah as teams evaluate

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materials and processes for future

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booster designs

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we are moments away from

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the space launch system booster motor

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for those future artemis missions to the

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moon today's test is called flight

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support booster 2. we did see a delay of

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this test today but we are here and we

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are ready to fire up this booster

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the booster motors for nasa space launch

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system are the largest most powerful

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ever built for flight

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sls has two solid rocket boosters that

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flank either side of the rocket and for

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two minutes today we're going to see the

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power of just one of those here in the

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utah desert

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if you're just now joining us we're

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about five minutes away from the flight

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support booster 2 test in utah the

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booster motor used for today's test is

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locked to the test stand just behind me

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be sure to follow us on social media at

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nasa's space launch system on facebook

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and nasa sls on twitter

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no matter where you're watching

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you can ask us your questions by using

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systems

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some booster experts join you here after

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the test to answer the temperatures

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and now i'd like to introduce you to a

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special guest with me today

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this is reid wiseman nasa astronaut

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engineer aviator and chief of the

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astronaut office it's an honor to have

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you here today reed thank you for

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joining us you bet it's great to be here

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yeah so we did see a delay today can you

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explain more about what that was about

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so what we were told is they were having

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trouble communicating with a few of the

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cameras that are up at the test facility

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there by the booster but they're going

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to proceed without that data because it

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was not critical for the test so we're

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back under the count and about three

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minutes away from lighting this thing

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yeah and we're excited to see it i mean

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it's going to be a great experience i

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believe this is your first is this your

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first test it is all right so both of us

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this is our first test yes this is the

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first time i've been at one of these

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booster tests and i just think it's

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absolutely awesome that we'll be

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launching artemis one in just a few

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weeks on two of these boosters so it's

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really neat to get to be here today yeah

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we're excited for launch now can you

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tell me more about why testing like this

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is so important

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uh because when we put humans on these

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things we want to make sure they work so

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they're testing a few critical systems

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on this booster today that's not related

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at all to artemis one but is related to

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our future crude artemis flights yeah i

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think artemis three and beyond is uh

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what we're testing for today and so can

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you kind of tell me more about what

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we're expecting to see with this booster

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test uh about two minutes of a lot of

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heat and fire coming out the back of

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that motor and uh i know about four

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seconds after it lights off we should

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feel the pressure wave and hear the

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sound uh much like we were watching a

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shuttle or an sls launch at the cape i

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think it'd be pretty awesome i mean the

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wind is coming down the hill kind of

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right at us so it should be carrying the

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sound down this valley you can see

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like literally thousand plus uh

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employees uh from northrop grumman out

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here to watch and nasa so i think it's

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gonna be amazing yeah and i think um the

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cameras might even shake a little bit

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from this test i mean you got to think

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about we're only getting a little taste

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of what we could see at launch you know

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this is only a single booster and at

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launch we're going to have two of those

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so it's going to be a great site to see

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two

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and then the four rs 25s on the bottom

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of the core stage going off uh you know

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about six seconds before the boosters

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light off so that's it's just going to

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be absolutely amazing to watch uh what

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american ingenuity what the american

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workforce can put together uh when we

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launch artemis one here in a couple

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weeks i can't wait to be there to watch

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it i absolutely agree well thank you

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reed for that great insight

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now remember we're going to have some

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booster experts join me here after the

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test to answer your questions use that

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hashtag ask nasa on social media to send

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those to us now let's get ready to fire

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up this booster you're going to hear a

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countdown from the test conductor

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followed by a two-minute booster firing

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we're going to cut away and we'll be

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commit the motor

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t-minus 60 seconds

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all high-speed systems are recording

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tbc is go for static test

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t minus 40 seconds

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t minus 30 seconds

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t minus 20 seconds

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t minus 15 seconds

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t minus 10

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9

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8

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2

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1

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okay

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first one

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let's go

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okay

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open the accumulator enable now

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activate absolutely

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activate head nco2

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activated activate quench tool forward

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activated

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so the script has ended pvc power is

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plus 160 seconds

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plus 170 seconds high speed data

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high speed recording is complete low

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low speed data recording complete

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t plus 3 minutes 30 seconds post fire

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crew report to the instrument room post

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welcome back and wow what an amazing

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sight to see this powerful solid rocket

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booster fired up

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again we're here at the northrop grumman

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facility in promontory utah where we

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just witnessed a two-minute booster

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firing of a solid rocket booster for the

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sls rocket here with me to talk about

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that test and to just to answer your

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questions we have julia codabande motor

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team lead for sls boosters at nasa's

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marshall space flight center and we have

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jessica rose chemical engineer for

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northrup grumman for the sls boosters as

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well

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so uh before we begin i just wanted to

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say you know we heard the test conductor

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talking a little bit before

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the uh the firing can you explain a

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little bit more about what they were

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saying so i'll start with julia yeah

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thanks alyssa

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wow that was fantastic

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so yeah we heard the test conductor

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before the firing of the motor she gave

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the go for test

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the test counted down and they committed

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the motor they armed the motor and then

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at t0 we saw smoke and fire

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we have out there today

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five segments of solid rocket motor

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at the t0 mark a signal was given from a

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ground controller to an igniter assembly

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which in turn

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ignited the five segments at the other

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end of the motor

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we have a nozzle assembly which had a

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nozzle plug and that would have come out

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as pressure built up inside the motor we

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also have an aft skirt assembly and it

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houses our advanced booster electronic

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thrust vector control system and that

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vectored the nozzle during the test

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a little bit later you heard the test

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conductor call for

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the water deluge which actually sprays

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water on the belly of the motor in order

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to cool the case and we do that because

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we want to preserve and protect our

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hardware

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and then a little bit later we had the

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ford co2 cooling and an aft boom swing

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around and uh send co2 cooling into the

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aft end of the motor so yeah the motor

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burned for 126 seconds which is how long

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it will power the artemis rockets during

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liftoff and early flight and it was a

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great test

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well thank you for that great detail

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julia so jessica how did you feel and

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can you tell us a little bit more about

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how we got to this moment yes absolutely

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so

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be able to see after it and i've seen

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many of these and it's just so

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impressive every single time and that's

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what every all these employees out here

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that work at northrop grumman and nasa

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that are here that work on the artemis

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segment are so thrilled for to see that

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what we do daily

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impacts that success that you saw

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and alyssa to answer your second

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question uh here in utah we manufacture

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these boosters from the beginning to the

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end of them we start with case prep

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during case prep they prep the case and

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then the line insulate the case and then

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line it once the case is lined it'll

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then go down to the casting pits where

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they invert this horizontal segment into

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a vertical position lower it down into

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this deep pit that fully covers the

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motor and then after that they start

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prepping it for what they call as a cast

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campaign during the cast camp they will

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lower the propellant into the motor at a

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continuous rate and then once the motor

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is full with propellant it'll cure for

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about one week

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after that week they'll condition and

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send it on down to x-ray

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during x-ray they will see if there are

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any voids in the propellant

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if not they will go down to the final

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assembly building where they finalize

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these motors they will put a igniter in

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the forward segment and a nozzle into

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the aft segment they will then either

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send them here to the test area for a

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static test or put them into a

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conditioned storage building for when

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kennedy space center requests our

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artemis segments down to them

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so it's quite privileged that we get to

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take from the beginning to the end of

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these boosters yeah it sounds like a lot

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of work from both nasa and northrop

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grumman has gone into this two-minute

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booster firing that's awesome so now

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we're going to get into some viewer

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questions it looks like our first

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question is for julia asking how big are

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the sls boosters

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177 feet tall so that's going to be

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equivalent of a 17 story building it's

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also as tall as the statue of liberty is

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from her base to her torch now the motor

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that we had out here today in our test

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stand wasn't quite that tall it was 154

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feet and the reason is is because we

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don't have the forward assembly that we

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have on our flight boosters in the test

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stand the ford assembly consists of a

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nose cone and a fresh drum and a forward

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skirt that houses our flight avionics

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however in a static test we actually use

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avionics that are part of the test stand

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great i mean that that was impressive to

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see and you know you don't realize how

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big these boosters are until you're

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actually standing there in front of them

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you know i actually got the opportunity

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to see the artemis one roll out and

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seeing how about for jessica why do we

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test in utah

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okay perfect so like i talked about we

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do manufacture these here and they're

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about on average three hundred thousand

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pounds each and we have a test stand

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that can withstand these

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the test stand has 13 million pounds of

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concrete in it most of that underground

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and so from that there's 3.6 million

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pounds of thrust that comes from the 1.6

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million pounds of propellant the

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propellant that we manufacture here

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consists of aluminum powder ammonium

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perchlorate a binder and a curing agent

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which then when cured is about like an

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eraser so

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that's a strange consistency i must say

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it's pretty cool yeah

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all right i'm gonna ask uh julia here

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another question can you tell us a bit

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more about the artemis missions maybe

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give us an update sure so

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we have um

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an artemis an sls program which has

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a number of artemis missions planned the

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boosters that were actually artemis

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mitchell and we're using the remaining

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shuttle hardware until it is expended

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after that at about the ninth flight

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we're going to be bringing shuttle

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hardware but it's also an opportunity

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for us to add even more uh capacity to

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the motors

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so in our artemis missions we're going

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to be returning to the moon we're going

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to be sending the first woman to the

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moon and once we have an establishment

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on the moon we'll be able to go into

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deep space and on to mars and so we're

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very excited in order to be a part of

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that

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really awesome um i'm going to ask

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jessica another question here

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um last question why do we ta or how hot

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does it get at the test stand over there

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how does that motor get that's an

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excellent question it is extremely hot

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we'll just say that so at the exit cone

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there's

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3700 degrees fahrenheit which is enough

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to burn the sand there into glass in the

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side the chamber is 5600 degrees

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fahrenheit which is enough to boil steel

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so to answer your question it gets very

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hot

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all right i do want to ask just one more

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question okay this is just i need to

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know how did your careers in aerospace

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begin and i'm going to start with julia

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okay yeah mine starts way back so

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my parents were actually on their

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honeymoon and took a break to watch neil

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armstrong walk on the moon um that was

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in

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70s we'll just say and um it's always

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been a part of the story of our family's

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beginning so when i was a child i was

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fascinated with space of course i was

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deeply impacted by the challenger

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so by the time i was in middle school i

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knew i wanted to work for nasa i went to

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college and got a degree in engineering

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and after that got a job in industry for

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a few years

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before taking a job at nasa so i've been

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with nasa now for 22 years and for the

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last 14 of those i've actually been

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working on solid rocket boosters and

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with artemis one getting ready for

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launch um about to roll out to the pad

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and then the testing that we're doing

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today which is going to support artemis

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iii missions and beyond we are in a very

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exciting time and it's a great time to

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be working on the sls program

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well that's a great story julia thank

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you and jessica how about you yeah great

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question and i loved hearing julia's

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story we've actually had the great

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opportunity to work with each other on

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these missions and building this fsb2

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booster so i started out growing up in a

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farm farming town in idaho which you

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wouldn't really think

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i would want to get into space but i had

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such a passion for it i just never knew

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i would be able to

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so later on i started realizing i had a

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great love for chemistry and math so i

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went on to get a bachelor's of science

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in chemical engineering chemistry and

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the minor material science engineering

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from the university of idaho

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from there i tried a couple different

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industry paths and then an opening came

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up at northrop grumman which i found was

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very close by here in utah and i jumped

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in as a propellant engineer and since

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then i've further furthered my career

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and what i what i absolutely love is my

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my daughter she's a three-year-old she's

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here in the viewing area and she has

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that passion for space and i get to

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share that with her we do science

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experiments almost every single weekend

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and like julia mentioned we you know we

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get to have the greatest impact and be a

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part of setting the first woman on the

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moon and so i have a beautiful passion

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in my career and i'd love to share that

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with anybody

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well thank you that's a beautiful story

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and

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daughter get to share in that you're

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gonna see the first woman on the moon in

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your lifetime that's amazing well thank

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you for sending in those questions thank

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00:21:39,990 --> 00:21:38,880
you to julia and jessica for joining me

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00:21:41,270 --> 00:21:40,000
here today

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and if you would like to watch a replay

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00:21:44,870 --> 00:21:43,360
of this test it is available on our sls

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00:21:46,230 --> 00:21:44,880
facebook page and nasa marshall's

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00:21:47,590 --> 00:21:46,240
youtube channel

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and

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until then we'll see you at the first

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00:21:58,950 --> 00:21:52,080
artemis mission to the moon see you at

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the free air temperatures

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00:22:05,510 --> 00:22:02,720
though still seem to suggest that

440
00:22:07,270 --> 00:22:05,520
there's nothing inside the skirt

441
00:22:11,190 --> 00:22:07,280
but i do still have some very warm

442
00:22:13,350 --> 00:22:11,200
nozzle components back there so

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00:22:14,789 --> 00:22:13,360
your call on the fire department

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00:22:16,390 --> 00:22:14,799
let's go ahead and send the fire