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  • It's 1 a.m. Eastern time on Friday, May 6th, and you're looking at a live view of Launch Complex 40 at Cape Canaveral, Florida Space X Falcon nine rocket, you see, is approaching a 1:21 a.m. Eastern launch of J.

  • C.

  • Sat 14 Good morning or evening, depending on where you are tuning in from here at Space six headquarters in Hawthorne, California we're getting ready for tonight's launch of Jaycee Sat 14 to geosynchronous transfer orbit.

  • My name is Kate Thais, and I am a process improvement engineer here at Mission Control Center in Hawthorne, California.

  • Like I said, we're anticipating our lift off of 1:21 a.m. Eastern time.

  • We're launching from Cape Canaveral tonight's and we are attempting a drone ship landing, too.

  • Of course I still love you, which is located a couple 100 miles off the coast of Florida.

  • As usual, you can expect to live shots from all across the walk all across the rocket all the way through payload deployment.

  • Got a lot going on.

  • So let's get started.

  • Hi.

  • I'm Michael Hamersley, materials engineer for our avionics department.

  • I'm behind me.

  • You can see the deep, dark velvet obscured somewhat by some beautiful smoke of the Florida night sky.

  • There it is.

  • Clearing up again.

  • Uh, this is the fourth flight of the Falcon nine upgrade vehicle carrying J C.

  • San 14 towards a geo stationary orbit.

  • If you joined us before then you're very familiar with what this pad set up looks like.

  • If not, you can see the Falcon nine rocket.

  • Of course, in the middle.

  • This is the first stage which is the excuse me, which is what does the heavy lifting getting the rocket to the edge of space.

  • It will then separate from the second stage and the first Egil continue on towards the drone ship.

  • Of course I still love you.

  • The second stage, which is carrying the satellite in the top part here.

  • This is the fairing or the nose cone just surrounding protecting the satellite.

  • The second stage will do to burns tonight.

  • It will first get us into low earth orbit moving at about eight kilometers per second on it will then coast for about 15 minutes or so to a second burn to kick it into a geo stationary transfer orbit, which is what gets the satellite to its final position.

  • Some other things you'll notice this is the strong back or the transporter Erector.

  • It supports the vehicle while it's standing before launch, and it also actually brings the vehicle out and tips it up right in preparation.

  • You'll notice several lightning towers surrounding it, and that's to protect it from Aaron Lightning strikes.

  • Given how frequently Florida has storms, a lot of lightning.

  • You can see the flame trench down here once the rocket starts lifting off.

  • Of course, the flame that is producing is almost a CZ.

  • Long as the rocket itself is tall gets channeled safely out towards the side.

  • You'll also see that there's a little bit of what looks like smoke that's totally normal.

  • The rocket is just so cold you'll notice a mission Progress bar below that you can use to follow, along with the important events and a countdown timer the top right of your screen to keep track about.

  • Hey, I'm John Federer's feel a lead mechanical design engineer.

  • Here.

  • It's basics, and I'm sure by now you know we're here to launch a really cool satellite into Geo Stationary Transfer orbit or GTO.

  • That satellite of course, is J.

  • C.

  • Sat 14 which once fully operational, provide four K television as well as communication service is for both the maritime and aviation industries.

  • We're also today gonna be continuing our experimental efforts to recover our first stage back on the drone ship.

  • Of course I still love you.

  • And to put this effort into perspective from July of 1950 right up until today, the 45th Space Wing at Cape Canaveral in Florida has supported well over 3000 rocket launches.

  • Of those launches, only five have ever attended to recover and land.

  • The first stage of the rocket last December or commission was the first to stick a landing back at Landing Zone one in Cape Canaveral, and we successfully test fired that rocket a few weeks later.

  • And about a month ago, we were also able to be the first ever to land a rocket on a drone ship in the middle of the ocean.

  • That rocket is also in good shape, and our nets next step will be to test fire back at the Cape or at a rocket development facility in Texas.

  • Now, today we're doing something a bit more difficult.

  • Given this mission's GTO destination.

  • The first stage will be subject to some extreme velocities in re entry heating, making a successful landing much more unlikely.

  • But later on we'll find out exactly what this entails, as well as some rocket science.

  • One No.

  • One.

  • But let's check in with the other John for a quick status update.

  • Hello, I'm John, his burger talking nine principal engineer.

  • I'll be bringing you status updates from my desk here.

  • A TTE the Webcast headquarters in space sex headquarters here in Hawthorne, California knots.

  • Late evening here in California, but we still have the employees gathering for another Falcon nine launch now.

  • Currently, we're deep into the launch auto sequence.

  • That's where the computers air commanding the ground in the Falcon nine vehicle hardware to get it ready for the planned on time launch.

  • Coming up in 15.5 minutes.

  • Let's take a look at the status for the wash Good news.

  • The Falcon 19 very nominal countdown that working no significant issues right now, after yesterday's bad weather, we actually rolled out to the pad, used the afternoon to get out there early at about T minus 25 hours.

  • A couple hours with after that way were vertical on the launch pad.

  • We've had a fairly quiet day.

  • Just getting the pad ready.

  • We've gone into the actual power on testing of the Falcon.

  • Nine were now in propellant load T minus 35 minutes.

  • We began loading liquid oxygen into the first stage and kerosene feel into both the first and second stages.

  • Second stage is now complete with feel load.

  • We're also loading second states liquid oxygen on.

  • So as I said Falcon, I kind of got working.

  • No issues.

  • J.

  • C sent spacecraft.

  • They did their check out's at about T minus 10 hours while we're vertical.

  • Earlier today, they've gone through their functional checks there right now, in the middle of transferring to internal power.

  • They started that at T minus 30 minutes.

  • We'll get an update on them when I give you the next status report.

  • Range reports that they are ready to support safety systems.

  • Tracking systems are ready and finally on the weather.

  • We've been looking at the ground level winds, but they're predicted to be good.

  • We're checking the upper altitude.

  • Everything still looking good.

  • So a T minus 14 minutes and counting.

  • Everything's looking good from the case the satellite will be launching will be providing television, including ultra HD for Katie, Be to millions of homes in the age of Pacific region, but not just TV.

  • It will also be providing communications for Emergency Service's and disaster recovery efforts.

  • Company that owns this satellite is Sky Perfect Jason.

  • They're the largest satellite operator in Asia, and those satellites are way out there.

  • We're talking 90 times further from Earth than where the space stations.

  • Now that's a huge distance.

  • And it's amazing to think that what a technological marvel at its to be able to beam a signal to that distance out in space and then back down to our homes.

  • Now the signal weakens over that long journey to the Sabbath with satellite takes that signal, amplifies it and then beings it back to her.

  • This'll satellite has a unique look.

  • It's definitely on the larger side, and it contains multiple antenna.

  • Who's arrangement may look unusual at first, but those Benz and turns are specifically designed for the Japanese lands.

  • Those patterns of bending focus the signal so that it's stronger over Japanese land where people are instead of having too much coverage over Japanese Ocean where people are not.

  • Of course, television is great.

  • But in emergency situations, seemingly simple service is like making a phone call are essential.

  • During the Great East Japan earthquake of 2011 there was significant damage to Japan's earth based communications infrastructure, including landlines.

  • Sky Perfect J SAT provided satellite bandwidth to government and public organizations to put affected areas in touch with disaster response first.

  • So there you have it.

  • A quick snapshot of J.

  • C.

  • Town 14 and many of its capabilities.

  • Okay, so we've got about 12 minutes until lift off.

  • As you can see, the crowd is growing behind me in anticipation of last off.

  • Now.

  • Crowd may not be as large as you may be used to seeing.

  • That's because it is late at night here in California.

  • Most of us are at home with their families, watching on line like yourself.

  • So now let's go for a little bit about what we are launching and who we're launching.

  • Like Michael Set sights Payload is J.

  • C.

  • Sat 14 a commercial communications and television broadcasting satellite for one of Asia's leading satellite operators, Sky perfect Jason.

  • This satellite will service Asia, Russia, Oshi, Anna and the Pacific Islands with ultra HD four K television programming and mobile communications for the maritime and aviation.

  • That means in home hi def streaming of your favorite movie or an important soccer playoff game, as well as communication for boats and airplanes in the Pacific included in that package capabilities to deliver passenger cabin WiFi and something I'm a big fan of in flight movies.

  • This satellite has another job to do, though.

  • In addition, in the event of a disaster, J C 14 will also be able to provide communications for emergency service's and disaster recovery.

  • So if ground lines happen to be damaged in a natural disaster, this satellite will help connect people from the sky.

  • We're sending it to geosynchronous transfer orbit.

  • That's 35,786 kilometers away.

  • In order for us to get it there, the vehicle requires a velocity of Mach 30 37,000 kilometres per hour.

  • That's about 13.5 times faster than a speeding bullet, so Jason will talk a little bit later about why we're sending it that far away.

  • But like I said, This is a communication satellite, and it's gonna be focusing on the Asia packed region.

  • So if you think of my fist as Earth Way, want satellite to be able to match the rotation of urgent of earth, so we have to send it that far away to do so.

  • So we're at looks like 10 T minus 10 and we're really excited of the upcoming launch.

  • Eso on its way back to the drone ship.

  • We're not back to the drone ship.

  • The first stage has three systems to control its absolute position as well as its yaw pitch and roll on many thanks to Logan sister, our integration specialists for walking me through some of those you've heard about the grid fins, which pop out like little t rex arms on rotates to control some of that motion wth e engines as well, which can also rotate about the base called gimbal ing to give it some directionality on.

  • Then you've got these two a.

  • C s upon thrusters stands for attitude control system.

  • Thes two ponds sit at the top of the interstate.

  • Each pod actually has four different thrusters.

  • One points directly out.

  • You have to pointing in either side into a wave into the camera, away from the camera on then one, pointing down the same direction as the engines.

  • It's easy to see what the sideways ones do.

  • They roll the vehicle on.

  • The ones that point out are for flipping the vehicle after a sense.

  • So it's continuing its parabolic.

  • Aren't this a CS thruster will fire, and it will rotate until it starts descending engines first.

  • But why would it have a thruster pointed down the same direction as these much more powerful engines?

  • Uh, and it's because during during this ascent, it's basically in freefall at that point, which means it's in zero gravity.

  • And just like astronauts that are floating around in zero gravity, the fuel inside the first stage is also floating around in zero gravity, so the liquid oxygen and R P one kerosene propellants need to be kicked back to the engine so that they can be used.

  • So as it's turned around, they're a couple fires are firing impulses that settle all that fuel down on.

  • Then, as of course, it descends, the grid fins work and the landing engine burns will slow it down to land on the drone ship, which again?

  • Fingers crossed way.

  • Hope we see later tonight we're t minus eight minutes and three seconds, and we're continuing to count down for an on time launch at 21 minutes after the hour.

  • We're continuing to quickly step through the automated sequence, which controls both the ground systems and the Falcon.

  • Nine.

  • There's minimal involvement by the Space six launch team.

  • Right now.

  • The computer's pretty much have control of the sequence.

  • Now, T minus 38 minutes before we came on, the air team was pulled.

  • 13 members were checked by the Space X Launch Conductor for their readiness to go into what we call the launch auto sequence.

  • T minus 35 minutes.

  • We went into propellant loading.

  • We have finished loading feel onto the second stage way.

  • Are currently loading liquid oxygen on the boat, the first and second stages that's going to continue up until about T minus two minutes.

  • Way load.

  • Liquid oxygen on is late as we can.

  • We want to keep it as cold as possible.

  • Keep it identified.

  • Get the maximum performance out of the Falcon nine engines.

  • The Falcon nine systems.

  • So currently prop low continues to look good.

  • There are a few events coming up that air.

  • Significant it.

  • Just inside of 5.5 minutes.

  • About 90 seconds from now, the guidance system will begin alignment.

  • That's making sure that we know where we are and we're ready to head out into space.

  • Just inside of T minus five minutes will pressurize the first, and the second stage is that's to get ready to open the clamp arms around the second stage and begin retracting the strongman.

  • That will happen at about T minus three minus three minutes, 25 seconds.

  • It takes a little while to see some motion on the screen, but then the stronger it starts, the pick up speed isn't losing weight.

  • And then, of course, the T minus two minutes We finished problem.

  • J.

  • C.

  • SAT spacecraft has gone internal.

  • They're ready for launch ranges.

  • Go.

  • We're looking at ground level winds, but they're still good within a few miles an hour limit.

  • So we think we're gonna be good.

  • So T minus six minutes all since will continue to be good.

  • And Kate, late 17th century Isaac Newton builds off your honest Kepler's planetary motion laws when he developed the law of universal gravitation.

  • It's this same law which affects this tennis ball when I toss it back up in the air and it comes down which we need to overcome to bring the spacecraft into orbit.

  • Now space is generally defined as being 100 kilometers away from the surface of the earth, also known as a karman line.

  • But if I simply threw this ball 100 kilometers up, it's gonna come roaring back down in a few minutes.

  • That's because at that distance the earth's gravity is still about 97% of what we feel right here on the surface.

  • To get and stay in orbit, we need to not only go really high to get out the Earth's atmosphere, we also need to go really fast sideways for geo stationary transformer missions waken approach speeds of up to 37,000 kilometres per hour and since kinetic energy is a square velocity, this could require 100 times as much energy to chief orbit than it does achieve sub orbit.

  • First gravity now acts as a centripetal force.

  • Turning our spacecraft around the earth is also known as an orbit.

  • Think of the spacecraft as this tennis ball and this string as the Earth's gravity.

  • When we're in orbit, gravity is now spinning us around.

  • The center of the Earth Way could stay up here almost indefinitely now the two most common orbits that satellites reside in our low earth orbit, which spans to about 2000 kilometers away from the service of the Earth, going from there to geo stationary orbit at 35,000 700 86 kilometers.

  • That's our ultimate destination today for the satellite, and if I place a satellite with the right velocity at this distance, it will be in a stable orbit by Newton's first law, the force of Earth's gravity.

  • A line of the center of the earth will constantly change the satellite's direction, just like a tennis ball in strength earlier, and we will stay up here like I mentioned earlier as well, almost indefinitely.

  • But bring us right back here on Earth way have began the final preparation of the Rocket, and you will see in a few moments here.

  • That's strong back, starting to retract as we're right leading up to the last few seconds of launch at T minus one minute, Mark.

  • Our flight computers are gonna enter into start up mode.

  • At that moment, we're gonna begin a series of final autonomous checks across the hundreds of sensors we have in the rocket.

  • And that leads into the T minus three second mark worth of base.

  • The rocket.

  • Look for a bright green flash come from the engines.

  • That's kind of like our lighter starting a gas grill.

  • This is what kicks the engines.

  • Those nine Merlin engines are gonna fully ignite, reaching full thrust just one second before lift off.

  • When we have some hold down clamps, those clamps are gonna check.

  • He the up the force coming out of the rocket.

  • That moment and we're going to release the rocket.

  • You're actually starting to see that strong back begins to pull away.

  • And those final moments are going are occurring on the vehicle after lift off of the T minus zero.

  • Mark, listen, In 10 seconds to launch, you're gonna hear one of our operators call out the phrase starting pitch.

  • This means that we're no longer going just straight up way.

  • Have started angling our rockets sideways to put J C set into orbit RG and see engineers or guidance navigation controls optimize our trajectory to both minimize the atmospheric drag as well as the gravity losses.

  • Because until we reach the orbital velocity that I mentioned earlier, gravity is just pulling us back down to Earth and thus slowing us down.

  • So now, with just a little over two minutes left way, it's basics invite you to listen into the final moments of our countdown sequence and make sure that you're listening to those words starting pitching because you'll know what that very moment that we are on our way into orbit.

  • Is Trump actually retracted and locked out?

  • Stage two locks secure for flight.

  • T minus two minutes.

  • Good night is on internal power.

  • Well, the e verify.

  • Go for launch.

  • L d go for lunch.

  • You see you verify?

  • Falcon nine hasn't started.

  • Duncan Nines and start up stage one.

  • Stage two Person for flight.

  • T minus 30 seconds.

  • T minus 20.

  • Fucking line Secured like pressures.

  • Do you mind instead?

  • Nine, eight, seven, 65 four, three two zero, nine hours plus one minute, 10 seconds.

  • We have launched from Space Launch Complex, 40 Cape Canaveral.

  • We're waiting to hear the call out.

  • We're going supersonic right now.

  • Passing through maximum dynamic pressure vehicle has completed the throttle down and throttle back up state proportions.

  • I heard the words turn in the background.

  • Propulsion is nominal phrase.

  • We love to hear it space we're currently beginning.

  • Actually, there's the call out for the chilling of the EM back engine, just like we did before launch for the first stage.

  • Engines were now chilling in the turbo pump on the second stage engine with liquid oxygen, getting it ready for ignition, coming up in just about 35 seconds.

  • The next major event that we're going to hear is main engine cut off that will come up in about two minutes and 38 seconds.

  • You can see the ground cameras following the Falcon nine.

  • The camera's on the Falcon nine will also be used, bringing us images back from space and a great view looking up, we're gonna listen in as we go to main engine cutoff and stage separation.

  • Now, right now, way beautiful in the first stage is actually continuing.

  • It's going so fast, it continues in this huge parable in ballistic trajectory and out towards the drone ship in the middle of the Atlantic.

  • It's quite a long ways.

  • It goes up to about 200 kilometers in altitude before it starts descending way landed on not too long ago.

  • Of course I still love you, which, like we said earlier, is about a couple 100 miles off the coast of Florida.

  • And let's not forget, of course, that view of the right side of that second stage engine powering and from the front of their apparent separation.

  • All these views are coming from just like this one I have in my hand right here.

  • It is literally this small space six design and build these in house like most of our avionics across the entire vehicle design build test.

  • One of the things we do really well here, Space X is vertically integrated.

  • We're making most everything out of aluminum because it's very light.

  • That's the reason we ditch the pairing.

  • Of course, it's so that we're not carrying excess master awards towards orbit.

  • It's just gonna be slowing down unnecessarily.

  • Now that the second stage is out of its going towards space, where there is no atmosphere, we're able to deploy the faring as you just saw Because our payload Jacey sat 14 new no longer needs protection from the friction created by the, uh, by the atmosphere.

  • So the second stage is gonna continue to burn for a little while longer.

  • Yet keep pushing that speed until it's about eight kilometers per second to get it into that low earth orbit, it will then pause for a little bit and allow it thio parking orbit in low earth orbit.

  • It's called, uh, that's gonna be in about 15 minutes of that coast period before restarts to begin that second burn, get into geosynchronous transfer with right.

  • Let's take a quick pause right now to see how that orbit in regards is actually happening with John.

  • He's been listening on the countdown nets T plus five minutes.

  • Everything continues to go nominal.

  • You hear that call out occasionally, something that we love to hear is, I said before it's Space X.

  • Give you an update on the Falcon nine trajectory.

  • Looking at the plot map on my monitor here, we're tracking down pretty much the middle of the predicted trajectory.

  • Now we've headed somewhat due east out of Cape Canaveral for our initial parking orbit.

  • We don't really change the inclination of the orbit, so we'll shoot eastward.

  • There will be a second burn a little bit later.

  • On that we plan to bring you in the webcast.

  • That'll be the burn.

  • It takes us to the geosynchronous transfer orbit.

  • First burn is into the parking lot.

  • You heard the caller.

  • Statesu.

  • Propulsion is nominal.

  • We're looking at the em back.

  • The engine.

  • You can see it on the screen.

  • We're monitoring the nozzle.

  • You could see the red glow with a ni Oh beom alloy of the nozzle extension on the impacting engine.

  • That's the normal color state.

  • That's what we expect.

  • Treat.

  • Things continue.

  • Remain nominal.

  • Still on both stages.

  • We are also looking at chamber pressures on the and just sits there looking good and solid.

  • We're watching how the turbo pumps working.

  • We're looking for the avionics system.

  • How power on the stage is Everything right now on the Falcon night continues to look good as we power away into that initial parking orbit.

  • Major event about to come up that we're gonna listen for is the entry burn of the first stage, like three engines for about 15 seconds Let's listen in for a minute.

  • Maybe we'll hear Steve wanted to burn.

  • Started the start of the booth.

  • This last for several more seconds will settle down and then we'll wait for the land and burn and the second stage headed into orbit we have set down of the landing burn.

  • Let's turn it back down to the floor and see how things are going there.

  • Just in case you just joined us.

  • We've had a great first descent of the first stage as well as a stage separation of first aid.

  • In second stage, second stage, As you can see, there on your screen, we had a great em back ignition and second stages.

  • Now, carrying J.

  • C sat 14 out to geo synchronous transfer orbits we're now waiting on like John said the first day to come back and make an attempt on to landing on.

  • Of course I still love you.

  • And we just completed that landing bird and we're gonna be waiting waiting for the landing burn, which I'm sure you'll hear the crowd around us start cheering.

  • Official confirmation of that what makes decisions so difficult in particular geosynchronous transfer orbit missions is that the reentry.

  • Even after that reentry burn, we're still moving twice as fast as we would for a typical low earth orbit mission.

  • We're entering the atmosphere It about two kilometers per second for this mission instead of ah, more typical one kilometer per second for a low earth orbit.

  • Right in that landing.

  • Bird's gonna come up in about another 20 seconds or so.

  • Keep in mind, going twice as fast.

  • The velocity is square energy, the square velocity four times as much energy as name partner on that stage and eight times much heating.

  • Which is why we said before, This is a very difficult mission for us.

  • And we're not expecting a successful attempt this time around the way and you're hearing here way, way already Good.

  • In a stable orbit right now with a second stage.

  • Well, that's a ghost story.

  • Yeah, Coast is again.

  • Get us continuing our parking orbit so that we could begin that second burn to get J.

  • C sat 14 directly where it should be, Which is to say directly over Japanese Asia Pacific region, so it could do its communications jams.

  • Do things like this amazing 14 communications satellite that will be over there.

  • So to be able to do it stop.

  • It's on its way.

  • Way.

  • It looks great.

  • Conditions, support.

  • Remember that way.

  • So we're gonna let you go while we're waiting for that coast periods and join us for the second part of the mission way.

  • Still do have to get that satellite to its geosynchronous transfer orbit on.

  • That's gonna involve a second burn and then the payload deploy itself.

  • So we have a cool animation to show you what's going on.

  • This is because we will be coming back to me.

  • Oh, thank you.

  • As the rest of the mission progresses, people.

  • John, it's Parker back with you at the fact that nine Webcast death desk here in our headquarters in Hawthorne, California We are just passed two plus 26 minutes and 15 seconds.

  • We're getting ready for the real light of the second stage engine.

  • Let's listen in.

  • We have a missing team.

  • Was happy that we're up in the correct power tank pressures.

  • They're looking good.

  • This Berna last about one minute.

  • This is the GF synchronous transfer orbit burn.

  • This will leave the J C SATs 14 spacecraft in the transfer orbit that takes it out to geosynchronous altitude, continuing to watch the burn.

  • Everything continues to go well, the engines throttling down to maintain five G's and we have shut down.

  • Okay, we've got a what looks like a good burn.

  • We'll be back in just a minute with the folks downstairs to let you know how the orbit is.

  • But let's go to the team monsters as we get ready for spacecraft deploy.

  • As John said, we had a great second stage ignition.

  • The 2nd 1 and a cut off.

  • Okay, so up to this point, we had a great first day.

  • Just sent a great stage separation.

  • First age came back down, landed on the drone ship and lands on a subject.

  • And then second stage is taking J.

  • C sat 14 out Sergio seat, geosynchronous transfer orbits.

  • So we've got a cool animation of what that actually looks like.

  • A lot of the vocabulary gets a little confusing, so we launch a first stage separates heads back, the second stage continues.

  • That was first run, really quick bearing deploy.

  • And now, as it's circling in his parking orbit, uh, second burn begins, and it basically raises that orbit.

  • So if it were to continue in that that motion, it would turn into this giant egg shaped orbit.

  • But what the satellite does, it uses its thrusters to prevent that Getting close to Earth against it circles the earth at that very geo stationary distance.

  • And we do have confirmation this moment that we are in a good orbit.

  • At this moment.

  • We do have a good orbit, that second stage, and we're preparing to deploy that payload in about another three minutes or so.

  • Now we do keep saying a lot around here.

  • They're going to geo stationary transfer orbit.

  • That means that we quit the settlement trajectory so that it could eventually put itself in a geo stationary orbit.

  • You saw the full motion that animation their final station orbit way only put in a transfer orbit at that apogee at the apogee of the orbit satellite itself, will you this own thrusters to circular rise that orbit for its final station, the apogee meaning the farthest point away from the earth in its work.

  • So there's a lot going on.

  • We've talked about the first stage quite a bit.

  • Let's talk about the second stage a little bit.

  • So the first agent second stage are very similar.

  • The technologies that exist in both of these vehicles allow our manufacturing processes to be streamlined across both of them.

  • But the second stage is more of a the precision instrument.

  • It's really getting the satellite into the exact right spot because that is a very specific place in space that we have to get into.

  • All right, bring it back to the orbits tossed before that first stage has to get us out of the atmosphere.

  • The air pressure on the vehicle is so great for that first stage is capable of putting out £1.71 million of thrust at sea level.

  • When we get into vacuum, it's a little more like £1.85 million of thrust.

  • And for comparison purposes, the second stage is putting out about £210,000 of thrust in vacuum.

  • So it gives a good, good perspective of the first day of doing all the heavy lifting and that second stage.

  • Next time you watch the launch and go back, we watch this one.

  • You'll notice that the second stage is really doing that speed maneuver.

  • Try and inject us into that position orbiting, and that's what you see right there.

  • That is the nozzle of art and back engine that is obviously planet Earth rotating behind it.

  • We got a nice, somewhat view.

  • Now we don't really have that a little while ago when we lifted off.

  • Yet that's our that's our second stage engine on.

  • Even though the technology is wildly similar, are largely similar between the first stage and the second state, the fact that one has to operate in vacuum and the other in atmosphere revealed some of the larger differences.

  • So this engine bell, for example, is a lot larger than the engine bells of thing nine engines on the first stage.

  • And that's because, in atmosphere, about 14.7 P s.

  • I.

  • Once the engine plumes expand enough such that they reach 14.7 as well.

  • You start to get serious turbulence effects in vacuum.

  • You don't have that pressure, and so you can have a longer engine bell to continue extracting work.

  • Now we've got five seconds left before the second state starts to rotate, and what that does is it allows the satellite to begin stabilizing for that when its employees, it's a bit like think much faster example.

  • We think like a rifling the bullet.

  • When you when you fire the bullet to spin that bullet, they align it and make it go very straight.

  • We're very, very slowly and you see that vehicle rotate from that view, spinning off second stage for the gyroscopic stabilization before we deploy our satellites from foreign end of that way.

  • So no, one time Stacy set itself is gonna begin its activation earlier.

  • Well, the antennas on our second stage is going to remain in that area as well.

  • We're gonna do some safety people, too.

  • Way start to make sure that the salmon is behaving nominally.

  • But that's really the both of our mission is getting it to that transport that successful.

  • So it's been a great evening slash Morning, for us so far.

  • Just has a quick way.

  • Had a great ascent of the vehicle.

  • Great stage separation in return of the first age back at of course, I still love you, sitting nice and pretty on top of our autonomous spaceport joint there.

  • And then obviously you just saw a great payload deployment of J.

  • C.

  • Sat 14.

  • We'd like to thank our customer.

  • The whole sky Perfect day SAT Corporation are partners in the Air Force and FAA.

  • Wade also definitely thank you the audience for joining us again.

  • Way definitely enjoy doing these up here.

  • We don't enjoy sharing sharing these experiences with you.

  • Follow us.

  • It's basics dot com or our social media, Facebook, Twitter and instagram on.

  • If you're interested in working here as well, look at space six dot com slash careers.

  • So once again, thank you for joining our Webcast.

  • And so say we all have a good night.

three.

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JCSAT-14主辦的網絡直播 (JCSAT-14 Hosted Webcast)

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    林宜悉 發佈於 2021 年 01 月 14 日
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