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hi welcome to nasa's jet propulsion

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laboratory in southern california i'm

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raquel villanueva here with engineer

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chris aceves

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and we are actually massless right now

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because we are fully vaccinated and took

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it off for this live specifically

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exactly and behind us is the model

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surface water ocean topography satellite

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known as swat yep that's correct and it

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is set to launch about a year from now

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and chris is here to answer any

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questions you might have about the

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spacecraft definitely and if you have a

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question you'd like to ask use the

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hashtag trackingworldwater

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or leave your comments in the chat box

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chris thanks for joining us today oh

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yeah i'm excited about this yeah and can

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you tell us what is the purpose of the

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swamp mission yeah as you mentioned uh

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swat stands for surface water and ocean

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topography it measures all visible water

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it's going to be helping all researchers

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and scientists to track volume of water

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understand the effects of weather

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climate and ocean lakes and rivers uh

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some additional data is going to be

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collecting is some small scale currents

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which will be supporting our real-time

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marine operations and you mentioned

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before there's other uses for the data

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too yeah definitely i'm super excited

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for what society's gonna be using this

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for improving computer models in

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monitoring drought conditions but also

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an improved floor

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flood forecast

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and i have a question about your role so

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you are a systems integration and launch

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engineer can you explain what you do for

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the mission yeah definitely so i'm

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currently i've been with the project for

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over four years now i'm currently the

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lead electrical engineer uh what that

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means is currently as during our test

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now and in future tests we have going on

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before launch i need to make sure that

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all hardware all science instruments are

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working properly i work closely with the

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system engineers and making sure that

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we're meeting all the requirements but

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also working with our scientists and

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verifying that our science data being

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collected is uh it's all healthy so a

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lot of testing yeah a lot of us are

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coming up and it's exciting and can can

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you kind of walk us through the swap

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model and kind of explain how it all

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works like is this to scale yeah no it's

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not to scale this is a one-third scale

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model so it's definitely much larger

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uh there's two main parts uh that's

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important here we have the bus which is

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this top box here and then we have this

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payload box the box is uh it's really

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the brain of this satellite it does all

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the commanding it records all the health

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uh data of this satellite which tells us

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if the if the satellite's healthy uh it

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also has proportion keeping it in its

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orbit uh and also is really the battery

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that powers up all of our science

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instruments so it's definitely a huge

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part of the satellite uh then we then we

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that carries all of our science

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instruments um yeah can you tell us a

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little bit more about the instruments

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right here definitely so here we have uh

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this cooler reflector here it's uh it's

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an amr which stands for the advanced

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microwave radiometer

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uh and what this does is it measures all

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the water vapor between this satellite

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and earth uh then we have the x-men

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antenna here which i think is the

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coolest antenna and the reason one of

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the reasons why i'm the i'm the

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cognizant engineer of this uh satellite

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and what that means is i need to know

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the ins and outs of the satellite so

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usually anyone has any questions on this

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they come to me first

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and then we have

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these other two satellites here are part

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of our french our partnership around the

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world they are from the french space

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agency canvas so we have this cool

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looking laser beam looking satellite

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it's called the

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doris and what doris stands for and it's

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extremely long name uh door uh doppler

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orbital graphe radio position integrated

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satellite that's a mouthful yeah i know

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it's uh that's something we say every

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day we just call it doris i like doris

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all right yeah and what this does is

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actually gives us the positioning of the

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satellite while it's in orbit so we at

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all times know exactly where the

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satellite is now what about this

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instrument yeah so this is the nader

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altimeter and what this does is measures

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the height of the sorry it measures the

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height of the water

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and uh something i do want to bring up

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is that all these instruments do work uh

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work together for example

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this nato altimeter dish will measure

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the height of the water but there is

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there is interference sometimes with the

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water vapor in between the satellite and

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the water and that's where the amr comes

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in we have those we have those

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measurements already so we're able to

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extract that data to get a better uh

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measurement of the water height

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and that covers all the instruments that

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you see here what about these beams then

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up here yeah

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so this is where it gets real exciting

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um this is really the care module and

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karen stands for is a k-band radar

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inferometer and um that karen endorsed

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them yeah we have karen and doris

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they get along pretty well

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uh so we have these two booms and these

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are reflectors and right here you can

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see on the other end are

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the feed horns and these actually shoot

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out a beam to these reflectors and they

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reflect down into the earth hitting the

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ocean or hitting anything that it sees

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and then it bounces back to the opposite

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reflectors and then collecting that data

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and that data is then stored and then

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transferred over to the x-men antenna

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and then transferred over to our ground

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stations for our scientists to review

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and you were saying that the french

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space agency canes

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is helping is there any other

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international collaborators there's a

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canadian space agency and the uk space

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agency and they are there are boxes that

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you not you're not able to see them but

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they there are boxes that supports our

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karen uh instrument that they're inside

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um

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so it's really an international effort

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yeah no it's world yeah and working with

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all these partnerships uh it's exciting

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to have all these engineers and we're

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all here for the same cause that's great

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big global team effort now those are all

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the questions i had for you i'm gonna go

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online and get some questions if you

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have a question you'd like to ask use

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the hashtag trackingworldwater

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and first up we have

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let's see

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astro kv 812 on instagram asks

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what is new about swat and that's

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different from earlier missions we had

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for the ocean it's going to be the high

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definition we're measuring to a scale

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that hasn't been done before which is

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going to help help as i mentioned before

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society get a better

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measurements to improve

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the computer modeling for

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drug conditions but also improve flood

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forecasting uh but the the fine tuning

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of

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high quality we're gonna be getting

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that's that's what this brings that that

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definition like quality that quality

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there and hugo on facebook asks how

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small of body can this measure

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uh so as mentioned just right earlier

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the the high division of this it's going

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to be small it's able to measure ponds

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uh small lakes um

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not i wouldn't say to measure the water

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in your backyard not a little puddle no

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okay that's not what we're trying to

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measure but it's supposed to measure all

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the little small river streams that are

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around the world and divia on instagram

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asks how would you be measuring water

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through the distance from space

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sorry can you repeat this sure like how

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would you measure water through the

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distance from space so how does this

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kind of be down and work so as i

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mentioned the karen it stands for it's a

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decay bad frequency there's a reason why

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we chose that type of frequency and once

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it interacts and hits water that

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frequency that the speed of that wave

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changes and once it reflects back and we

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see that change of wave that tells us

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exactly

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um the dense of how much water there is

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so that information of that frequency is

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what is providing us that

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information from from earth okay well

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thanks for that question now uh sorry on

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facebook

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uh how does this measure the water that

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you know it's active

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i'm just making water in the way of yeah

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yeah uh again with the k-man v that

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frequency uh if you don't know if it

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hits demand uh water any type of soil uh

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it's gonna know the difference between

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water and soil and once we see that

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different data to know exactly what the

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yeah it needs to be real detail

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and then um how much time will it take

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to complete the whole mission this is a

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gtp unknown on its example

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yes commission it's uh it's a three-year

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mission uh but from the previous mission

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we haven't passed with other projects

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here at dpl uh they've always surpassed

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their lifespan so we're really hoping

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like how big is this mall in new york

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city yeah no it's uh imagine a original

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yellow school box

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it's quite large

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and then with the solar ray panels

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imagine a

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737 boeing plane being span

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so it's it's a large spacecraft

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and cga on instagram asks what are the

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main components that are the most

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important

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yeah no it's depends what you're asking

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well for you what is it uh

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i think everyone's gonna agree that it's

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really uh karen that's what's uh

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the heart of this satellite it's

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measuring uh the water it's going to

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give us a lot of patterns a lot of

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information that we're going to need but

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again if you're asking me i'm going to

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choose the expand tenant uh again uh

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without this we're not we're not going

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to be receiving any of this data if this

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goes down

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it's like we're not going to be able to

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collect any of the science data that's

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being measured how's doris going to feel

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about all this yeah i know doris is not

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going to like that but uh karen karen's

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the lead lady here she's important too

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no she's afforded as well

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and then uh we have jessica on facebook

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who asks where in the world is the

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satellite being built

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currently it's in france uh

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this payload part started here at jpl

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with the instruments uh the french space

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agency they came over brought their

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instruments got integrated here in jpl

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pasadena

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uh

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this was then sent over to france which

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is currently then being integrated into

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this bus

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and once it's fully built and complete

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we then bring it back

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towards the end of this year from launch

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here in uh in california

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and uh will you be going back and forth

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to france yeah so i was there this this

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year for a few months uh we're currently

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in the middle of doing a lot of

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environmentals on the mechanical side

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and i'll be going back this january to

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continue electrical testing and i i'm

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one of the lucky few to be part of the

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the launch team that will be in uh

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in the french space agency in toulouse

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france and actually seen uh live live

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information live coming down to earth

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verifying that our instruments are

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working properly and give it the go to

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you know begin collecting science data

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yeah it'll be a lot of international

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travel in your future

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so

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favorite part of working on this mission

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my favorite part is uh the team uh like

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as is mentioned this is a worldwide

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effort here and being able to

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work with all these different engineers

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there's always going to be hurdles to

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get through and getting all their heads

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in this together with the same goal with

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the same achievement

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uh it's it's amazing how well we work

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together to get through these hurdles

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yeah great answer and that's kind of all

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the time we have for questions today

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thank you so much for joining us chris

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no problem now swat is being jointly

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developed like you said by nasa and the

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french space agency canes with

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contributions from

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the canadian space agency canadian and

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the uk space agency they're both a

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part and there's uh hardware and boxes

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inside the cairn that they support and

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uh so yeah so there's total of the four

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of us and then it's scheduled to launch

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no earlier than november

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2022. that is correct it's getting close

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here no it's getting real close and for

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more information on swot you can visit