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most days on orbit crew members also

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spend time looking out the window often

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they take pictures of what they're

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looking at there are other uh

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cameras on the outside of the station

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that are doing some of the same thing

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it's no secret that the views of earth

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from space are pretty spectacular

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in fact there are four new cameras on

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board the station that are giving the

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most unique views that we've ever seen

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let's go join lori meggs at the payload

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operations integration center at nasa's

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marshall space flight center in

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huntsville alabama to learn more about

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the high definition earth viewing

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experiment to date there have been more

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than 22 million views of the high

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definition earth viewing cameras those

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are four cameras that are attached to

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the outside of the space station the

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stream video live video of earth back

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and for use online and they're looking

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at how they react in a harsh environment

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of space an analysis of that data could

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lead to what types of cameras are the

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best to use on future space missions we

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spoke with the associate program

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scientist for crew of the observations

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will stefanoff and he tells us more yeah

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the hdev is currently capturing a lot of

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web traffic uh because it's

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it's a first for a number of reasons uh

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it's the first continuous hd

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downlink from the iss i mean we've had

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other cameras up there before but they

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have sort of been spotty coverage this

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is the first one that's on all the time

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uh it's actually four cameras four

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commercial off the shelf hd cameras in

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an enclosure that's uh built to test

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temperature control

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and the cameras the main purpose of this

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of the hdr project is not to take earth

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imagery that's that's just a very cool

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added bonus of it uh the real purpose is

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to test how long these cameras can

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survive in the in the space environment

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before they degrade so much through

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things like cosmic ray hits that they're

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not usable anymore

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so with the four cameras there's one

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pointed in the in the ram direction at

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the for the forward velocity vector of

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the iss there's two facing aft and one

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facing nader looking right down on the

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earth and the way the camera the way the

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system is currently set up right now

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they the video feeds cycle through all

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four cameras

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um but there's two educational

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educational opportunities are coming up

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that we're working with student groups

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in

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the german space agency dlr

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and also the university of houston clear

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lake has a group of students also that

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will be looking at the camera both to

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collect data for specific areas but also

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to monitor the primary purpose of the

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experiment see how long it see how the

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cameras are degrading over time

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and so those programs are just getting

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spun up but in the meantime yeah the

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hdev is returning spectacular hd views

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of the earth

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other firsts for it it's the it's the

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first payload that was completely

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robotically removed from the spacex

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spacecraft and installed on the iss

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it's the first one to use four cameras

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simultaneously

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for commercial off the shelf cameras

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and it's also useful for showing not

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only just views of the earth but also

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when the feed cuts out just because

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there are times when the iss can't

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transmit data to the earth that gives

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gives the person viewing it kind of a

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sense of what it's like to actually work

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with the iss there are points in time

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where

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neither the sensors nor the crew can

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actually talk to the earth fortunately

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those those periods are fairly short but

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by viewing the hdf feed you kind of see

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exactly what that periodicity is

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yeah it's kind of a first to have this

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much excitement about just looking at

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the earth by by folks around the world

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with social media and things like that

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it's really made this explode i'm sure

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yeah well it's it's it's a it's a new

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view of the earth i mean i mean the crew

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photography you've had that kind of

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detail before but it's still imagery you

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know i mean i mean we also have the time

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lapse imagery that's been developed from

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camera sequences which is also provides

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a really spectacular view of what it's

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actually like to look out the window at

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the iss

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but the hd camera yeah is capturing it

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kind of in real time you know so it is

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really like you're on the iss looking

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out the window are you surprised by how

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much people are excited about this and

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want to see it

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not not so much i'm not that surprised

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because uh just from from the crew earth

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observations facility we've kind of

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always known that that people are just

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really excited and interested to see

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views of the earth from space

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and

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connection you know this this is a view

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that's not coming from a robotic

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satellite it's actually coming from a

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spaceship

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that has people on it uh i think that

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resonates with people that that gets a

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deeper connection than just say looking

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at a landsat image

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you know or some or another sensor image

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uh it's it's very easy to interpret it's

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a true color image it's basically what

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you'd see flying out of an airplane just

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it's a very higher plane

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a little bit higher um so

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what will we see next i know you've

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probably got to stay one step ahead with

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technology and

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earth observations what's next well we

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have um right now we have two sensors

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which are going up on on iss this year

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one is uh the cats cloud atmospheric

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profiling lidar system so it's a laser

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system which is going to be looking at

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particulates in the atmosphere and also

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being used to look at storm circulation

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patterns

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and then there's also the rapid scat

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sensor which is a radar sensor and what

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that's going to be looking at are sea

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surface wind patterns and both of those

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tie into how earth's climate

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is changing over time with rising

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temperatures

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how circulation patterns are changing

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and then we'll also have further down

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the line we have other sensors coming

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online which will look at other other

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elements of the atmosphere

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sensors which will look at the solar

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input into the system you know sensors

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specifically designed to look at solar

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irradiance

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those are coming down the line

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there's also more hyperspectral

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instruments

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coming down the line so that we'll be

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able to get more detailed information

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about land surface processes than we

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currently have from sensors on the iss

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and that's been useful hyco has been

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extremely useful to the epa and everyone

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yeah the epa has used it uh there's a

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wide variety of scientists around the

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world who are using it for research um

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it's been useful for yeah contaminant

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water contaminant studies it's useful

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for mapping shallow water bathymetry

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and people are actually starting to use

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it now to look at the land surface as

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well

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and it was specifically designed to look

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at coastal areas but it can also collect

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useful data over the land too

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so we have a number in fact just this

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morning

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cases

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informed us of three new proposals that

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were accepted which will be using hico

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data to look at both water and land

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processes i'm just glad to see the iss

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sort of coming into its own as a remote

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sensing platform i mean i've worked for

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years as a researcher with the more

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traditional

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robotic satellite sensors and and those

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are well designed for the data they

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collect but the iss allows us to collect

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in some ways a fundamentally different

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kind of data because it goes over

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different spots of the earth at

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different times during the day so it

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allows us to view things that we haven't

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really seen before from a remote sensing

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perspective and that's really exciting

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as a scientist and somebody who's now

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you know has the has the privilege of

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kind of helping to develop the iss

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you've seen some of those views from the

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high definition earth viewing experiment

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before that's operating all of the time

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as will stefanov explain that's four

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high definition video cameras looking

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forward

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and

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orbits providing some some really nice

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views of the earth as it tests out how

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well the the cameras themselves work the

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primary goal of the experiment to make

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sure that those things are working you

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can get a look at the video that's

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coming from those cameras by checking

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out the web address here