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well good evening and good morning for

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the folks on the east coast my name is

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dwayne brown with nasa's office of

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communications

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you are

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here where

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nasa's

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mars maven spacecraft has successfully

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been placed in orbit

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we're here at the lockheed martin

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facility in littleton colorado where you

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will hear

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how it was done and the next steps

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this is truly a happy ending to a new

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beginning

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we have brief remarks from

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our participants and then we'll open up

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for questions and these folks have a lot

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to do so we're going to try to keep this

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short to about 30 minutes so we'll ask

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you to limit your questions to one

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you can bring your questions or ask your

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questions on hashtag ask nasa and we'll

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start with questions here

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and then we'll wrap it up

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so before we hear the remarks let me

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introduce you to the

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the folks here first up

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john grunsfeld

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astronaut

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associate administrator

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the nasa science mission directorate

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david mitchell

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maven project manager

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got nasa's

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space flight center

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guy buttercheese

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lockheed martin maven program manager

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lockheed martin space systems company

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and a very very happy gentleman at the

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end

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bruce

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jokowski the maven principal

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investigator from the laboratory for

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atmospheric and space physics

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university of colorado and boulder and

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with that john your thoughts well i'm

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just really excited to be able to talk

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to you this evening

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with a very happy group of people

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having put the maven spacecraft into

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mars orbit

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stepping back just a little bit though

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and thinking about you know what an

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amazing accomplishment this is

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we often talk about how mars is hard

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and once again you know this team made

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it look easy

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but it certainly wasn't it represents

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years of work you know very complex work

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and it's just incredible to me that

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we're able to accomplish these things

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and that maven has joined a fleet of

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spacecraft including the mars

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reconnaissance orbiter odyssey curiosity

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and opportunity

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at mars and reflects this incredible

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quest to unravel the mysteries of the

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universe and to try and understand mars

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this really is a quest of humanity it's

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an international quest and it was a team

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effort

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to get maven into mars orbit it

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represents the start of the maven

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mission

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this effort was made and bruce will talk

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more about that

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i just want to thank all the team

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members and in particular the family

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members

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that had to suffer while all these folks

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were working you know weekends and

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nights

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and i also want to thank the family

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members for all the weekends and nights

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that the science team is going to be

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working

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while the maven mission is doing its

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incredible incredible work

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so with that

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david hand it over

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wow what a night um you know you get one

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shot with mars orbit insertion and maven

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nailed it tonight so

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um we've got a really happy crew in the

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building here and and

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across the country and literally around

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the world so i'm just really excited for

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the crew and their families as as john

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just mentioned so um thanks to everybody

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for for the hard work to get this point

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many years and and so we look forward to

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the years ahead and and uh so i'm simply

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going to talk a couple minutes about uh

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where we are in the orbit and then guy

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will talk about spacecraft health but um

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really things look really great with the

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the orbit at this point

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navigation navigation solutions were

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very stable before mri and showed a

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nominal approach direction with arrival

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at altitude at a good safe distance

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moi was successfully executed the

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duration of the burn

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and these are all preliminary numbers

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but as it stands right now the duration

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is uh

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34 minutes 26 second burn

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that was about 11 seconds longer than

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the nominal which really means we nailed

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it i mean maven nailed it it was right

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on the money so really happy about that

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all the observed navigation data is

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within nominal range

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um post moi orbit assessment and it's

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active right now it's going on as we

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speak and we'll be meeting later about

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that tonight but tracking data indicates

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we're in a stable capture orbit the

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orbit period is near the target of 35

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hours so this is the the first initial

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orbit and then our first

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pass back into periops our lowest

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portion of the orbit that'll come the

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next time around past mars is is

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calculated to be near 380 kilometers

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above the surface and that really is

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right on the money on that one that was

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what we had planned for

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so and they um in the next couple of

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days we'll do our second burn we have a

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total of five burns coming up to to walk

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it down from the 35 hour orbit to the

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four and a half hour orbit that we'll

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have our science in

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so we'll do what's called our peri-ops

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lowering maneuver number one

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in two days and look forward to that and

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uh but again so far so good really happy

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team out here and i'll turn it over to

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guy

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all right i'm gonna just uh kind of walk

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you back through what we did on the

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spacecraft side

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we started right before the maneuver

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doing what we call a pressurization

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event we have a tank of helium high

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pressure helium on board that's isolated

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behind these valves that are

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pyrotechnically activated so it's

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isolated all the way through crews and

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we fire those valves to allow the helium

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to flow through a regulator to our

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propellant tank and the reason for that

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is that maintains a high pressure during

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the burn to allow the burn to be

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efficient

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so that went uh went well that's uh that

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was one of the stressful points for the

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engineers because that's one thing these

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are pyrotechnic valves which means you

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can only fire them once so

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you can't really test them because if

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you fire them you got to take them out

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and put in a new one so uh that was one

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of the uh the

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events we were watching very closely but

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it worked flawlessly

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at that point we

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slewed the spacecraft it had been flying

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with its high gain antenna pointed

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towards the earth but we needed to slew

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so that the

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main engines would be pointed in the

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proper direction and that takes our high

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gain antenna off of the earth so we

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switch to low gain antennas that have a

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much wider field of view

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the down point is that we we had to drop

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to 40 bits per second so we had a little

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lower telemetry rate

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so it made a little more nervous

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watching that uh watching the burn but

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the slew went well

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we started right on time as dave said we

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have accelerometers on board and we use

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those accelerometers to basically

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measure the change in velocity as the

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engines are burning

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that allows us to get a very precise

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cut off

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230.5 meters per second uh which

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corresponds to about 2 753 miles per

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hour

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uh we used up this preliminary estimate

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but approximately about 260 gallons of

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rocket fuel

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uh we then slewed back to earthpoint to

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get the high gain antenna back uh

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pointed at the earth and that allowed us

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to to bump up the downlink rate to 285

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kilobits per second and that's where the

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team is right now so we're getting the

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data down

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and we're analyzing all that data the

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kind of the preliminary look is that all

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systems seem to be healthy we don't see

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anything that is in uh

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that shows a problem but again we're

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downlinking all this high rate data and

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the data we recorded during the burn so

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that we can do some more in-depth

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analysis and make sure that

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that that everything is as expected

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so

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you know i i would like to to say

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that kind of echoing would what john and

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dave said

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you don't realize you know people won't

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realize how much hard work went into

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this

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how much behind the scenes stuff went on

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during the design phase how much testing

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the team did how many contingencies that

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we went through what if scenarios what

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if this happened what if that went wrong

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it really is an amazing amount of work

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that the team did to make it look so

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smooth uh tonight um it's kind of cliche

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people walk around going it's not rocket

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science well sometimes it is rocket

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science so and uh i'm very proud to be

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part of this team

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and i just want to thank them uh for all

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the hard work they've done so now i'm

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gonna turn it over to bruce tell us

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about the great science room

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thank you

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i think my heart's about ready to start

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again

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we've been

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developing this mission for 11 years now

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from the the original concept that we

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wanted to propose

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and

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i can't tell you how many

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requirements reviews

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powerpoint proposals how much paper we

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push to get there

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how many reviews along the way

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how much effort the team put into

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the the design

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the development building testing the

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spacecraft

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launching it

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then we had a 10 months cruise

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and an absolutely flawless performance

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tonight

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it just amazes me that we're able to do

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this and

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as they've said to do it and appear so

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so appear for it to be so effortless

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it's a real testament to the team

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i think i want to send my thanks and my

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congratulations to the team we've had

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over 600 people working on maven at

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different times throughout its lifetime

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and

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we've gotten here because of the

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incredible commitment and dedication of

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each one i've come to realize that every

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single person wearing one of these maven

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shirts tonight thinks that they are

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doing absolutely the coolest thing they

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can be doing

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and they have put their heart and soul

287
00:10:39,750 --> 00:10:38,079
into each job that they're doing to get

288
00:10:42,470 --> 00:10:39,760
us here and i think that's why we've

289
00:10:43,990 --> 00:10:42,480
been successful at getting here and

290
00:10:48,949 --> 00:10:44,000
making it look so effort because of the

291
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i want to echo guys and dave and john's

292
00:10:56,870 --> 00:10:54,640
thanks to our families

293
00:10:58,630 --> 00:10:56,880
they put up with an awful lot

294
00:11:01,190 --> 00:10:58,640
you don't realize

295
00:11:03,829 --> 00:11:01,200
until you go through this what it takes

296
00:11:05,990 --> 00:11:03,839
to do this and what the families

297
00:11:08,470 --> 00:11:06,000
especially have to put up with in terms

298
00:11:09,990 --> 00:11:08,480
of lost weekends

299
00:11:14,630 --> 00:11:10,000
travel

300
00:11:18,870 --> 00:11:17,110
i also want to

301
00:11:21,430 --> 00:11:18,880
take a step back we've had a

302
00:11:23,670 --> 00:11:21,440
tremendously successful night tonight

303
00:11:27,030 --> 00:11:23,680
we are anxiously awaiting

304
00:11:29,430 --> 00:11:27,040
the arrival in two days of the india mom

305
00:11:31,670 --> 00:11:29,440
mission and we're hoping for their

306
00:11:34,069 --> 00:11:31,680
success we're sending them the best

307
00:11:35,910 --> 00:11:34,079
wishes from the entire maven team

308
00:11:36,949 --> 00:11:35,920
for a successful orbit insertion and

309
00:11:39,910 --> 00:11:36,959
mission

310
00:11:42,550 --> 00:11:39,920
all i can say at this point is we're in

311
00:11:43,829 --> 00:11:42,560
orbit at mars guys

312
00:11:48,150 --> 00:11:43,839
and

313
00:11:50,150 --> 00:11:48,160
we get to do the science that we've been

314
00:11:51,190 --> 00:11:50,160
planning for all this time

315
00:11:52,870 --> 00:11:51,200
so

316
00:11:53,590 --> 00:11:52,880
dwane i'll throw it back to you thank

317
00:11:54,389 --> 00:11:53,600
you

318
00:11:57,030 --> 00:11:54,399
well

319
00:11:59,030 --> 00:11:57,040
folks before we open up for questions uh

320
00:12:06,150 --> 00:11:59,040
let's give this incredible team a round

321
00:12:10,470 --> 00:12:08,389
okay just a reminder that you can send

322
00:12:11,350 --> 00:12:10,480
your questions in to

323
00:12:14,230 --> 00:12:11,360
ask

324
00:12:15,990 --> 00:12:14,240
nasa and again these folks their work is

325
00:12:18,389 --> 00:12:16,000
just beginning we're going to keep this

326
00:12:19,910 --> 00:12:18,399
short to about 30 minutes so if you can

327
00:12:21,110 --> 00:12:19,920
keep your questions to one if we have

328
00:12:23,030 --> 00:12:21,120
some time

329
00:12:24,710 --> 00:12:23,040
maybe a follow-up and then we'll see if

330
00:12:27,030 --> 00:12:24,720
any of the social media folks have a

331
00:12:28,870 --> 00:12:27,040
question if we're wearing good on time

332
00:12:31,670 --> 00:12:28,880
uh so if you can

333
00:12:33,030 --> 00:12:31,680
raise your hand here again uh hashtag

334
00:12:34,629 --> 00:12:33,040
ask nasa

335
00:12:37,110 --> 00:12:34,639
if you're looking at this

336
00:12:39,910 --> 00:12:37,120
from around the country and name and

337
00:12:43,910 --> 00:12:42,389
yes we have a mic on the way we do have

338
00:12:45,590 --> 00:12:43,920
a mic

339
00:12:47,829 --> 00:12:45,600
and so while we're waiting for mike one

340
00:12:48,710 --> 00:12:47,839
more plug for the hashtag

341
00:12:51,509 --> 00:12:48,720
ask

342
00:12:53,670 --> 00:12:51,519
nasa for the folks who are watching this

343
00:12:55,990 --> 00:12:53,680
name affiliation great thanks this is

344
00:12:57,190 --> 00:12:56,000
alex whitsey from nature um for bruce

345
00:12:58,629 --> 00:12:57,200
can you talk about what's going to

346
00:13:00,310 --> 00:12:58,639
unfold with the science instruments

347
00:13:02,069 --> 00:13:00,320
which ones get switched on in which

348
00:13:03,910 --> 00:13:02,079
order and when we start to get data back

349
00:13:06,629 --> 00:13:03,920
from the various instruments

350
00:13:08,389 --> 00:13:06,639
let me let me start from when we start

351
00:13:10,310 --> 00:13:08,399
the science mission over the next six

352
00:13:13,269 --> 00:13:10,320
weeks we have to do commissioning of the

353
00:13:15,829 --> 00:13:13,279
spacecraft that requires us to do

354
00:13:17,670 --> 00:13:15,839
maneuvers as dave said to get into our

355
00:13:20,870 --> 00:13:17,680
final mapping orbit we have to deploy

356
00:13:23,110 --> 00:13:20,880
the booms we have four booms to deploy

357
00:13:24,870 --> 00:13:23,120
with instruments at the end uh one of

358
00:13:26,949 --> 00:13:24,880
the instruments the engines instrument

359
00:13:29,350 --> 00:13:26,959
has a cap that has to be deployed off of

360
00:13:31,829 --> 00:13:29,360
it called a break-off cap we have to

361
00:13:34,389 --> 00:13:31,839
turn on the instruments test them

362
00:13:36,470 --> 00:13:34,399
do some calibration of the pointing

363
00:13:38,870 --> 00:13:36,480
do an end-to-end relay test using our

364
00:13:41,110 --> 00:13:38,880
electric communications relay

365
00:13:43,670 --> 00:13:41,120
to to send data to and from the

366
00:13:45,350 --> 00:13:43,680
curiosity rover all of this is going to

367
00:13:47,509 --> 00:13:45,360
take about six weeks before we're

368
00:13:49,189 --> 00:13:47,519
actually ready to do science so we're

369
00:13:51,189 --> 00:13:49,199
looking at early november as the

370
00:13:52,389 --> 00:13:51,199
official start of science

371
00:13:54,069 --> 00:13:52,399
on the way

372
00:13:56,069 --> 00:13:54,079
we have

373
00:13:58,870 --> 00:13:56,079
what i'll call a bonus opportunity with

374
00:14:00,710 --> 00:13:58,880
comet siding spring that is a comet

375
00:14:01,670 --> 00:14:00,720
discovered last year that has a close

376
00:14:02,949 --> 00:14:01,680
approach

377
00:14:05,990 --> 00:14:02,959
to mars

378
00:14:09,750 --> 00:14:06,000
in on october 19th it's going to miss by

379
00:14:11,269 --> 00:14:09,760
only 132 000 kilometers which is is

380
00:14:13,110 --> 00:14:11,279
almost nothing

381
00:14:14,310 --> 00:14:13,120
we're going to take five days out of our

382
00:14:16,629 --> 00:14:14,320
commissioning

383
00:14:18,150 --> 00:14:16,639
in order to make observations of the

384
00:14:20,790 --> 00:14:18,160
comet itself

385
00:14:23,350 --> 00:14:20,800
and of the mars upper atmosphere and

386
00:14:24,629 --> 00:14:23,360
solar wind environment both before the

387
00:14:26,870 --> 00:14:24,639
comet approach

388
00:14:28,629 --> 00:14:26,880
and immediately following so we can get

389
00:14:31,110 --> 00:14:28,639
a before and after look at the upper

390
00:14:31,910 --> 00:14:31,120
atmosphere so that's five days centered

391
00:14:33,829 --> 00:14:31,920
on

392
00:14:35,509 --> 00:14:33,839
october 19th

393
00:14:37,750 --> 00:14:35,519
if we have the opportunity we'll be

394
00:14:39,509 --> 00:14:37,760
turning instruments on sooner and

395
00:14:41,430 --> 00:14:39,519
getting some additional early science

396
00:14:44,790 --> 00:14:41,440
but that depends on how the

397
00:14:45,990 --> 00:14:44,800
the next hours and days unfold

398
00:14:48,710 --> 00:14:46,000
so we're going to leonard and then we're

399
00:14:51,829 --> 00:14:48,720
going to go to the ask nasa questions

400
00:14:53,350 --> 00:14:51,839
yeah leonardo space.com i maybe i think

401
00:14:54,230 --> 00:14:53,360
it was dave that talked about the walk

402
00:14:56,150 --> 00:14:54,240
down

403
00:14:58,629 --> 00:14:56,160
maneuvers and can you just describe

404
00:15:00,629 --> 00:14:58,639
maybe the first one and are they all

405
00:15:04,230 --> 00:15:00,639
different the fives there's different

406
00:15:05,350 --> 00:15:04,240
durations and uh so the um

407
00:15:07,189 --> 00:15:05,360
uh

408
00:15:10,150 --> 00:15:07,199
i'm trying to think of the exact times

409
00:15:11,350 --> 00:15:10,160
but um basically the the second one of

410
00:15:13,990 --> 00:15:11,360
those the

411
00:15:16,470 --> 00:15:14,000
period reduction maneuver

412
00:15:18,069 --> 00:15:16,480
that's got the longest burn it's it's

413
00:15:20,069 --> 00:15:18,079
actually i don't have the numbers right

414
00:15:22,710 --> 00:15:20,079
in front of me but um it's not as

415
00:15:25,110 --> 00:15:22,720
significant as the moi burn we just went

416
00:15:27,750 --> 00:15:25,120
through but i want to say about a third

417
00:15:29,590 --> 00:15:27,760
of that amount of a burn so it's um that

418
00:15:31,189 --> 00:15:29,600
that's a big one and they're all they're

419
00:15:33,509 --> 00:15:31,199
all designed to um

420
00:15:36,230 --> 00:15:33,519
you know we wanted to carefully get into

421
00:15:38,550 --> 00:15:36,240
a a larger orbit before we

422
00:15:41,590 --> 00:15:38,560
dialed it in so to speak and so

423
00:15:43,269 --> 00:15:41,600
um it'll the again the first one happens

424
00:15:46,150 --> 00:15:43,279
in a couple of days and the last one

425
00:15:49,269 --> 00:15:46,160
will happen i want to say about um

426
00:15:51,670 --> 00:15:49,279
uh 10 days out on that order in early

427
00:15:53,269 --> 00:15:51,680
october uh we'll we'll do the last one

428
00:15:55,590 --> 00:15:53,279
and then we'll be in our final four and

429
00:15:56,550 --> 00:15:55,600
a half hour orbit and and that'll get us

430
00:16:00,870 --> 00:15:56,560
uh

431
00:16:04,949 --> 00:16:00,880
surface

432
00:16:09,350 --> 00:16:07,509
okay let's uh go to my colleague jason

433
00:16:11,110 --> 00:16:09,360
townsend who is monitoring the questions

434
00:16:13,829 --> 00:16:11,120
coming in from hashtag

435
00:16:17,509 --> 00:16:13,839
ask nasa and jason what do we have on

436
00:16:21,189 --> 00:16:19,030
hi so we've got our first question

437
00:16:23,509 --> 00:16:21,199
coming in from twitter user freelance

438
00:16:25,910 --> 00:16:23,519
filos asking where can the community get

439
00:16:28,550 --> 00:16:25,920
data from maven

440
00:16:31,030 --> 00:16:28,560
let me take that one

441
00:16:32,550 --> 00:16:31,040
once we start to collect data we'll be

442
00:16:34,389 --> 00:16:32,560
releasing

443
00:16:35,430 --> 00:16:34,399
some of the early results as quickly as

444
00:16:38,949 --> 00:16:35,440
possible

445
00:16:41,509 --> 00:16:38,959
and the data will be available on

446
00:16:43,829 --> 00:16:41,519
our various websites we've got one at

447
00:16:47,829 --> 00:16:43,839
last.colorado.edu

448
00:16:50,949 --> 00:16:47,839
maven and of course nasa.gov maven

449
00:16:53,189 --> 00:16:50,959
we were anticipating that we'll really

450
00:16:55,990 --> 00:16:53,199
begin to understand the data and start

451
00:16:59,030 --> 00:16:56,000
to get preliminary conclusions for the

452
00:17:00,949 --> 00:16:59,040
goals of the mission after about three

453
00:17:03,590 --> 00:17:00,959
months so we're looking at early in the

454
00:17:05,909 --> 00:17:03,600
calendar year to really be getting our

455
00:17:08,870 --> 00:17:05,919
results out

456
00:17:10,949 --> 00:17:08,880
another question jason

457
00:17:12,470 --> 00:17:10,959
twitter user jonathan asks is there

458
00:17:14,549 --> 00:17:12,480
anything specific that you're looking

459
00:17:17,189 --> 00:17:14,559
for and or expecting to find in mars

460
00:17:21,510 --> 00:17:20,230
what we're trying to do is to

461
00:17:23,750 --> 00:17:21,520
respond

462
00:17:25,590 --> 00:17:23,760
with this mission to observations that

463
00:17:27,909 --> 00:17:25,600
tell us that the climate has changed on

464
00:17:29,909 --> 00:17:27,919
mars significantly over the past few

465
00:17:31,590 --> 00:17:29,919
billion years we're trying to understand

466
00:17:32,549 --> 00:17:31,600
what the cause of that climate change

467
00:17:33,990 --> 00:17:32,559
has been

468
00:17:36,950 --> 00:17:34,000
and we're looking at the role that

469
00:17:38,870 --> 00:17:36,960
escape to space may have played in

470
00:17:41,270 --> 00:17:38,880
removing the atmosphere and changing the

471
00:17:43,669 --> 00:17:41,280
atmosphere so we're looking at what

472
00:17:46,150 --> 00:17:43,679
happens at the top of the atmosphere how

473
00:17:48,710 --> 00:17:46,160
the processes involving the sun and the

474
00:17:50,390 --> 00:17:48,720
solar wind affect the gas at the top of

475
00:17:52,950 --> 00:17:50,400
the atmosphere and strip it away to

476
00:17:55,029 --> 00:17:52,960
space so in essence that's our goal to

477
00:17:59,350 --> 00:17:55,039
answer the question where did the water

478
00:18:03,750 --> 00:18:01,350
okay uh do we have

479
00:18:05,190 --> 00:18:03,760
any more questions here and then we have

480
00:18:09,430 --> 00:18:05,200
here

481
00:18:11,590 --> 00:18:09,440
can you wait for the mic

482
00:18:13,830 --> 00:18:11,600
name and affiliation hello i'm laura

483
00:18:15,190 --> 00:18:13,840
keaney with the denver post um tim

484
00:18:17,029 --> 00:18:15,200
preiser came down earlier and he was

485
00:18:18,390 --> 00:18:17,039
talking to us about the fuel

486
00:18:21,270 --> 00:18:18,400
and i understand that you were expecting

487
00:18:23,029 --> 00:18:21,280
to use 25 gallons to get out there but

488
00:18:24,390 --> 00:18:23,039
it only used five and i put that on

489
00:18:25,350 --> 00:18:24,400
twitter and a lot of people have been

490
00:18:27,669 --> 00:18:25,360
asking

491
00:18:29,909 --> 00:18:27,679
why and what what impact is that going

492
00:18:32,870 --> 00:18:29,919
to have on the mission

493
00:18:34,070 --> 00:18:32,880
yeah i'll take that yeah um

494
00:18:36,950 --> 00:18:34,080
we budget

495
00:18:38,549 --> 00:18:36,960
you know uh our fuel during the design

496
00:18:40,870 --> 00:18:38,559
phase to make sure that we can

497
00:18:41,990 --> 00:18:40,880
accommodate all kinds of scenarios so

498
00:18:43,510 --> 00:18:42,000
there's all you know there's

499
00:18:45,510 --> 00:18:43,520
uncertainties in performance for

500
00:18:47,750 --> 00:18:45,520
instance on the launch vehicle

501
00:18:49,430 --> 00:18:47,760
but the launch vehicle came gave us a

502
00:18:51,430 --> 00:18:49,440
fantastic ride and put us right where we

503
00:18:53,990 --> 00:18:51,440
needed to be so we had budgeted extra

504
00:18:57,750 --> 00:18:54,000
fuel in case the launch vehicle left us

505
00:18:59,430 --> 00:18:57,760
off slightly off of of the target so

506
00:19:01,190 --> 00:18:59,440
so that went well so we didn't have to

507
00:19:03,430 --> 00:19:01,200
use quite as much fuel there we had

508
00:19:05,909 --> 00:19:03,440
planned for what we call trajectory

509
00:19:07,750 --> 00:19:05,919
correction maneuvers or tcms these are

510
00:19:10,230 --> 00:19:07,760
maneuvers where we we changed the

511
00:19:11,270 --> 00:19:10,240
trajectory we we planned for four of

512
00:19:13,830 --> 00:19:11,280
them

513
00:19:15,350 --> 00:19:13,840
but the first two went so well

514
00:19:16,870 --> 00:19:15,360
due to a combination of the great

515
00:19:19,270 --> 00:19:16,880
navigation work out of the jet

516
00:19:21,110 --> 00:19:19,280
propulsion laboratory and how well the

517
00:19:22,789 --> 00:19:21,120
spacecraft behaved

518
00:19:25,590 --> 00:19:22,799
so when we did those maneuvers the

519
00:19:27,350 --> 00:19:25,600
spacecraft executed those burns exactly

520
00:19:28,549 --> 00:19:27,360
right where the navigators wanted us to

521
00:19:30,310 --> 00:19:28,559
do them

522
00:19:32,070 --> 00:19:30,320
so we had uncertainties budgeted for

523
00:19:33,990 --> 00:19:32,080
thruster performance uncertainties in

524
00:19:35,590 --> 00:19:34,000
terms of our attitude control

525
00:19:37,510 --> 00:19:35,600
all of that

526
00:19:39,830 --> 00:19:37,520
really came right down the middle and

527
00:19:41,590 --> 00:19:39,840
then the kind of the third piece of that

528
00:19:44,470 --> 00:19:41,600
was we work very closely with the

529
00:19:46,549 --> 00:19:44,480
navigation team to help them model

530
00:19:48,950 --> 00:19:46,559
any kind of delta v that comes from the

531
00:19:51,510 --> 00:19:48,960
spacecraft so that they can put that

532
00:19:53,590 --> 00:19:51,520
into their navigation solutions

533
00:19:55,669 --> 00:19:53,600
the better you model it the better they

534
00:19:57,029 --> 00:19:55,679
can you know design those first two

535
00:19:59,430 --> 00:19:57,039
maneuvers

536
00:20:01,029 --> 00:19:59,440
and then uh because it was so well

537
00:20:03,270 --> 00:20:01,039
modeled and the spacecraft was so well

538
00:20:06,070 --> 00:20:03,280
behaved we actually got to cancel the

539
00:20:07,750 --> 00:20:06,080
third one and the fourth one

540
00:20:09,590 --> 00:20:07,760
which is you know

541
00:20:11,270 --> 00:20:09,600
a testament to all the hard work of both

542
00:20:13,830 --> 00:20:11,280
the engineering team on the spacecraft

543
00:20:16,310 --> 00:20:13,840
and the navigation team so it really was

544
00:20:17,990 --> 00:20:16,320
when when when you budget for problems

545
00:20:19,909 --> 00:20:18,000
and then the problems don't occur and

546
00:20:22,230 --> 00:20:19,919
your design behaves exactly as you

547
00:20:24,549 --> 00:20:22,240
designed it good things happen like a

548
00:20:27,029 --> 00:20:24,559
lot lower fuel use than you'd planned

549
00:20:28,870 --> 00:20:27,039
does that mean the mission can go longer

550
00:20:30,950 --> 00:20:28,880
the more fuel we have the more we can

551
00:20:33,270 --> 00:20:30,960
give it to bruce for uh for getting more

552
00:20:34,390 --> 00:20:33,280
science and extending the mission so yes

553
00:20:36,310 --> 00:20:34,400
okay we're going to take one more

554
00:20:37,430 --> 00:20:36,320
question here a couple more from ass

555
00:20:39,830 --> 00:20:37,440
nasa and then we're going to wrap up

556
00:20:42,549 --> 00:20:39,840
good job uh aj smith with audible

557
00:20:44,390 --> 00:20:42,559
designs um i was wondering

558
00:20:45,190 --> 00:20:44,400
what do we learn on the laddie mission

559
00:20:46,870 --> 00:20:45,200
that

560
00:20:49,270 --> 00:20:46,880
makes this uh

561
00:20:51,029 --> 00:20:49,280
different or better than um

562
00:20:53,909 --> 00:20:51,039
the maven

563
00:20:55,110 --> 00:20:53,919
well the the lady mission was a mission

564
00:20:56,870 --> 00:20:55,120
to the moon

565
00:20:58,710 --> 00:20:56,880
and we're at mars so i'm not quite sure

566
00:21:01,510 --> 00:20:58,720
i understand your question well they

567
00:21:02,950 --> 00:21:01,520
were both to um sample the atmosphere to

568
00:21:05,510 --> 00:21:02,960
see what was in them before it was

569
00:21:06,710 --> 00:21:05,520
polluted so well the moon

570
00:21:08,230 --> 00:21:06,720
you know most people think it doesn't

571
00:21:10,870 --> 00:21:08,240
have an atmosphere but in fact it has a

572
00:21:11,909 --> 00:21:10,880
very thin and tenuous atmosphere

573
00:21:14,789 --> 00:21:11,919
and it's

574
00:21:16,549 --> 00:21:14,799
a combination of volatiles and and other

575
00:21:18,870 --> 00:21:16,559
elemental abundance that's coming from

576
00:21:21,029 --> 00:21:18,880
the moon in an exosphere

577
00:21:23,669 --> 00:21:21,039
and in particular studying the fact that

578
00:21:25,029 --> 00:21:23,679
the moon is almost a complete vacuum

579
00:21:27,270 --> 00:21:25,039
you know that questions about

580
00:21:28,549 --> 00:21:27,280
electrostatic elevation of dust and

581
00:21:30,630 --> 00:21:28,559
things like that

582
00:21:32,470 --> 00:21:30,640
but it is very different from mars mars

583
00:21:33,990 --> 00:21:32,480
has you know a relatively thick

584
00:21:35,830 --> 00:21:34,000
atmosphere compared to the moon a very

585
00:21:38,149 --> 00:21:35,840
thick atmosphere compared to the moon

586
00:21:40,549 --> 00:21:38,159
the more interesting comparison is that

587
00:21:42,310 --> 00:21:40,559
we have you know a fleet of earth

588
00:21:44,149 --> 00:21:42,320
science and weather satellites around

589
00:21:46,630 --> 00:21:44,159
the earth for us to understand the

590
00:21:48,870 --> 00:21:46,640
earth's atmosphere and the mars

591
00:21:50,230 --> 00:21:48,880
atmosphere being something like the

592
00:21:52,310 --> 00:21:50,240
earth's

593
00:21:55,830 --> 00:21:52,320
maven is more akin to our earth

594
00:21:57,830 --> 00:21:55,840
observing satellites but somehow mars

595
00:21:59,510 --> 00:21:57,840
changed billions of years ago from a

596
00:22:01,190 --> 00:21:59,520
thick atmosphere like earth to the very

597
00:22:02,950 --> 00:22:01,200
thin one today and that's the big

598
00:22:05,830 --> 00:22:02,960
mystery that bruce and his team with

599
00:22:07,350 --> 00:22:05,840
maven are trying to solve

600
00:22:09,110 --> 00:22:07,360
jason

601
00:22:11,990 --> 00:22:09,120
wonderful this next question comes from

602
00:22:13,750 --> 00:22:12,000
twitter user ideosh who asks is the

603
00:22:17,590 --> 00:22:13,760
riskiest part of the maven mission

604
00:22:21,029 --> 00:22:20,230
sure um

605
00:22:22,310 --> 00:22:21,039
okay

606
00:22:23,190 --> 00:22:22,320
so there's there's

607
00:22:25,270 --> 00:22:23,200
um

608
00:22:26,870 --> 00:22:25,280
there's gates along the way so launch is

609
00:22:28,870 --> 00:22:26,880
a big deal

610
00:22:30,630 --> 00:22:28,880
mars urban insertion is certainly a big

611
00:22:32,149 --> 00:22:30,640
deal

612
00:22:33,830 --> 00:22:32,159
and we have a series of deployments that

613
00:22:36,470 --> 00:22:33,840
bruce already described that are coming

614
00:22:38,390 --> 00:22:36,480
up in october so every one of these

615
00:22:39,590 --> 00:22:38,400
steps we we breathe another sigh of

616
00:22:41,590 --> 00:22:39,600
relief

617
00:22:43,190 --> 00:22:41,600
and it is because as guys said because

618
00:22:44,950 --> 00:22:43,200
of the testing and all the work that's

619
00:22:47,990 --> 00:22:44,960
been done but nonetheless they're big

620
00:22:49,750 --> 00:22:48,000
events that have to work and so we

621
00:22:52,070 --> 00:22:49,760
you know i i don't want to say what risk

622
00:22:54,549 --> 00:22:52,080
is is the highest but everyone has to

623
00:22:56,549 --> 00:22:54,559
work along the way i personally

624
00:22:57,990 --> 00:22:56,559
will breathe a lot easier november 8th

625
00:22:59,590 --> 00:22:58,000
when the science starts that means all

626
00:23:03,350 --> 00:22:59,600
the deployments have worked all the

627
00:23:05,430 --> 00:23:03,360
checkouts have been finalized so um but

628
00:23:07,990 --> 00:23:05,440
space is hard you know the space flight

629
00:23:10,230 --> 00:23:08,000
is hard and um but it's it's great to

630
00:23:11,909 --> 00:23:10,240
knock off one of the the big risks

631
00:23:13,270 --> 00:23:11,919
tonight that we had with mars orbit

632
00:23:14,710 --> 00:23:13,280
insertion

633
00:23:17,430 --> 00:23:14,720
i'll breathe a sigh of relief after the

634
00:23:19,110 --> 00:23:17,440
one earth year video

635
00:23:27,190 --> 00:23:19,120
the primary science is done then i'll

636
00:23:27,200 --> 00:23:31,510
we've gotten a whole solar cycle

637
00:23:34,149 --> 00:23:33,190
jason let's take one last one before we

638
00:23:35,669 --> 00:23:34,159
wrap up

639
00:23:38,789 --> 00:23:35,679
sure this question comes from twitter

640
00:23:41,110 --> 00:23:38,799
user okay now run who asks are there any

641
00:23:43,590 --> 00:23:41,120
superstitions observed by the maven team

642
00:23:45,510 --> 00:23:43,600
before or after maven's mars orbital

643
00:23:48,149 --> 00:23:45,520
insertion

644
00:23:50,549 --> 00:23:48,159
yeah i'll throw one out uh it's a common

645
00:23:52,549 --> 00:23:50,559
tradition to bring peanuts to both

646
00:23:55,029 --> 00:23:52,559
launch events and orbit insertion events

647
00:23:57,029 --> 00:23:55,039
peanuts are considered good luck

648
00:23:59,269 --> 00:23:57,039
and then we also our fall protection

649
00:24:00,870 --> 00:23:59,279
engineer brought in mars bars so i think

650
00:24:04,310 --> 00:24:00,880
that's going to become

651
00:24:05,830 --> 00:24:04,320
become a new tradition as well

652
00:24:07,350 --> 00:24:05,840
okay that's going to do it i want to

653
00:24:09,190 --> 00:24:07,360
thank you all for

654
00:24:10,789 --> 00:24:09,200
letting us uh stay within the time limit

655
00:24:12,710 --> 00:24:10,799
we're actually going to in a little

656
00:24:14,870 --> 00:24:12,720
earlier these folks uh their work is

657
00:24:16,549 --> 00:24:14,880
just beginning and if you're just

658
00:24:18,710 --> 00:24:16,559
joining us

659
00:24:20,549 --> 00:24:18,720
here the lockheed man facility in

660
00:24:22,070 --> 00:24:20,559
littleton colorado

661
00:24:23,669 --> 00:24:22,080
the mars atmosphere and volatile

662
00:24:26,630 --> 00:24:23,679
evolution of maven spacecraft has

663
00:24:27,830 --> 00:24:26,640
successfully entered martian

664
00:24:30,149 --> 00:24:27,840
orbit

665
00:24:34,230 --> 00:24:30,159
the work is beginning uh you can get

666
00:24:38,230 --> 00:24:35,269
maven

667
00:24:39,669 --> 00:24:38,240
join the conversation a lot of talk

668
00:24:40,710 --> 00:24:39,679
on facebook

669
00:24:42,149 --> 00:24:40,720
twitter

670
00:24:44,390 --> 00:24:42,159
keep those questions coming in at

671
00:24:46,230 --> 00:24:44,400
hashtag asknasa and we'll have

672
00:24:48,230 --> 00:24:46,240
scientists available to answer those

673
00:24:49,990 --> 00:24:48,240
questions so just keep them coming in

674
00:24:51,029 --> 00:24:50,000
and again congratulations to the maven