Name: 銥星一號託管網播 (Iridium-1 Hosted Webcast)
Uploaded: 2021-01-14T10:25:25.000Z
Duration: 1 h 39 min 20 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

程度副詞

You're looking at a live view of the Falcon nine rocket carrying 10 Iridium next satellites preparing for lift off in just about 20 minutes from now.

My name is Tom for Dario, and welcome to the live webcast of today's Falcon nine launch from Space X is West Coast launchpad at Vandenberg Air Force Base, California.

Today's launch not only marks all returned to flight following our September 1st mishap last year, but it also represents the first of seven launches were performing for a radium to carry their next constellation of communication satellites into orbit.

This will also be the first flight from Vandenberg Air Force Base since our launch of the Jason three satellite into orbit last year.

And finally, the Falcon nine first stage will be returning to our autonomous spaceport drone ship.

Just read the instructions once it safely delivers theory Diem payload into orbit.

As you can see, we have lots to covering today's Webcast, and we are so excited to be back on the launch pad.

Hi, I'm Michael Hamersley of Materials Engineer in our avionics department.

On is an absolute gem of a day and abandoned Berg Air Force base with sapphire skies.

For our launch, the Falcon nine is standing on the pad about 70 meters tall.

The smoke that you see here is totally normal.

It's just the bleed off of excess cold oxygen on.

It's just like if you breathe out on a cold day, that same condensation forming from the atmosphere.

The first stage, which is this part, is gonna power the rocket from the ground to the edge of space about 100 kilometers up on.

Then it's going to return to the drone ship.

While the second stage powers the actual satellites toe orbital speeds, it's about eight kilometers per second, or 10 times the speed of a rifle bullet, while the satellite's themselves are sitting just in the very top inside the fairing.

That faring is big enough to hold a school bus if we wanted standing just next to the rocket is the transporter erector or the strong back.

That's what transports the rocket out to the pad and then stands it upright in preparation for launch.

It contains quick disconnect, which transport, fuel and propellant.

Excuse me, A CZ well as electrical power and electrical signals to and from the rocket propellants, of course, are liquid oxygen and liquid kerosene or RP one, both of which are super chilled in order to get them the densest so that the most propellant can be put inside the vehicle so that it has the most power.

As we're trying to do so many things with it at once, checkouts are proceeding normally, as they have been for the past several months.

Lauren's going to go into a bit more detail about the extra steps that have been taken for this particular launch.

You can follow along with us on the mission, using the countdown timer on the upper right hand side of your screen, only our first launch of the year.

But as many of you know, it's also our return to flight following explosion during a routine fueling operation on our launch pad back on September 1st 2016 over the past four months, reports with officials in the FAA, the U S Air Force and NASA, along with several industry experts, to determine the cause of the anomaly.

The investigation team concluded the explosion was due to the failure of one of the three composite, over wrapped pressure vessels, or C O.

V s inside the Falcon nine second second stage Liquid Oxygen Tank CEO Peevey's store Cold helium gas, which is used to maintain the rockets, take pressure at each C.

P V consists of an aluminum liner surrounded by a carbon fibre composite over rap team found that oxygen likely accumulated between the liner and the over rap and became trapped in a void created by a buckled liner.

Whether through fiction or pressure, this led to an ignition event and subsequent failure of the C O P.

In order to receive our launch license Space six implemented corrective actions to address all the credible causes for this failure mode.

P V configuration to allow warmer temperature helium to be loaded, and we returned helium loading operations to the flight proven configuration based on operations used in more than 700 successful COPD loads.

In the long term, Space X will implement design changes to the cold helium system, which will allow for faster loading operations and avoiding the conditions that led to the September 1st failure.

We greatly appreciate the strong support of our customers and partners throughout this investigation.

As you return to flight, we look forward to getting back to launching and landing this year and beyond.

Good morning from Space six headquarters in Hawthorne, California I'm John this Burger Falcon nine principal integration engineer.

I'm after Webcast desk and what we call the mezzanine overlooking the Mission Control Center and the rest of the team that's gathering together for today's launch.

We're currently a T minus 13 minutes and 40 seconds.

Coming up on an instantaneous window for launch will have just one second launch.

So it's gonna be no opportunities if we happen to have a hold here in the last 13 minutes.

Now I'll be bringing you the status updates both in the countdown and during the count up as we proceed into orbit.

Basically, how are things going on that answer?

Falcon nine team is conducting the countdown working.

No significant issues were on schedule for an on time launch.

We pulled the team for readiness to begin loading propellants.

That's a change from our previous timelines that you've watched us in the past year, where we have pulled the team at T minus 35 minutes and begin loading.

So we began loading feel in the first and second stage of T minus 75 minutes.

Feel is on the second stage were also pretty much loaded on the first stage, except we've got to do a little topping off.

That will happen in the last minutes of the countdown.

Liquid oxygen voting is also underway on both stages.

Right now is we're loading the last of the helium into the storage vessels on the first and second stage.

We're making sure we get enough mass in there so that we can accomplish today's mission.

So, as I said, Falcon 19 looking good there, working no issues in the countdown uranium satellite team, you might have heard on the countdown up.

They have transitioned internal power, working no issues there, ready for an on time launch.

The range is working one issue right now, but they expect it will be fixed in time.

There's a ship in the danger area, but they think it will be out of the way, and that takes us upto weather.

The ground winds and the upper altitude winds are borderline.

We're waiting for the very last balloon that should be processed right about now.

Lots of everything's looking good here for the fact that nine launch Hi, my name is Lauren Lions and I'm a system certification engineer here at Space X.

Today we're launching 10 radium next satellites to low Earth orbit.

This is our first of seven launches that we have a contract with the radio.

Each of the 10 spacecraft batter on board right now have a massive 600 kilograms.

When the solar Roy's a solar rays or flute fully deployed, they have a 30 foot wingspan, which equates to more last four Shaquille O'Neal's least in satellites in position inside of the face of space X bearing and mounted onto to vertically stacked space X design dispensers with five satellites each.

Once Falcon nine gets to the right orbit, space sex will send a separation signal to the dispensers, deploying the satellites one by 1 100 seconds apart at an altitude of 625 kilometres above the earth.

Once the satellite to deploy the 10 satellites will form the beginnings of a new a radium constellation in the sky.

Each satellite will be cross linked to four others in the consolation allowing for a web of space space communications from ground or airborne users from any location on Earth to any other place on Earth.

This has applications everywhere from Coast Guard, maritime communications to mobile Internet and even cellular communications in remote areas without the use of ground stations.

Once these 10 satellites launched today, plus the 60 that we're gonna launch later on by space X this'll consolation will be complete, forming a network of 70 Iridium next satellites across multiple orbital planes providing continuous coverage over the entire earth.

The first scent of a radium satellites started launching about 20 years ago, and it provided, among other things, worldwide satellite phone coverage.

A podium Next is a second generation consolation, and these satellites will have different and upgraded capabilities as compared with their aging reference.

Marty, one of our resident video producers, got the chance to speak with the radium CEO mad dash to learn a little more about this newer constellation.

I'm a video producer at Space Six and I'm in McLean, Virginia, at Iridium's headquarters, and I'm joined by a radium CEO.

Could you give us an overview of already in next?

Yeah, Iridium Next is one of the largest aerospace projects that's going on in the last 10 years and maybe for the for the next many.

It's 81 new satellites built and launched into space $3 billion program to completely replace our current generation communication network flying in low earth orbit, providing communications, people all over the earth.

How are these new satellites different than previous constellation?

They're able to provide hired data speeds to our customers.

Probably one of the most unique aspects about them is the fact that they offered new service is that we've never created before, like the ability to track aircraft anywhere in the world In real time.

Satellite communications often go unobserved.

字幕列表影片播放

銥星一號託管網播 (Iridium-1 Hosted Webcast)

boost

force

failure

separate