Chapter 253 Ultra-Low Orbit Satellite Shocks the World's Aviation Experts

Musk's SpaceX is the only company in the world that has achieved recyclable rockets. As a boss, even if he is not a technician now, he still knows the pictures taken by recyclable technology very well.

The picture taken on the left screen of the live broadcast room now looks very much like the scene taken when they experimented with the recovery of the "Falcon".

Musk's expression has never been more solemn. He stared at the left screen, and his right hand was shaking imperceptibly.

And many top aviation experts from many countries also sat in their positions, looking at the live broadcast screen on the left.

Although they have no experience in realizing recyclable technology, it does not prevent them from seeing the leopard from the tube. In addition, when they compared the recyclable rocket video released by SpaceX before, they found that the perspectives of the two were surprisingly similar.

Then there is only one truth, that is, the rocket launched by Tianyu Xinghai this time may also use recyclable technology!

"The leading position of Eagle Sauce in aviation may be rewritten today." An expert from the Great Mao country said.

The live broadcast is still going on. Although the domestic audience is a little surprised by the sudden split screen of the live broadcast room, it does not prevent them from continuing to watch. As long as there is no explosion and black screen, it does not prevent them from continuing to revel and dance.

Now the left side of the screen shows the perspective of the rocket recovery thruster, and the right side shows the perspective of the remaining rocket flying into space. It will fly another 20 kilometers and reach an altitude of 130 kilometers to release the satellite.

Obviously, the right screen must have completed the task first. Soon the audience also noticed that the right screen came to space and launched 12 satellites like a fairy scattering flowers.

With the help of the internal small booster rocket, the 12 satellites flew back to their orbits like 12 fluttering wings of butterflies, spread the wings of solar panels, and started their own operation.

This is the last scene of the right screen, and it is also the scene that made the domestic live broadcast audience cheer for the third time.

Seeing this, everyone knows that the satellite was successfully launched, and the audience in the live broadcast room fell into a sea of ​​joy.

The barrage of congratulations was swiping the screen crazily in the live broadcast room, and the people of Xiang City who watched it together on the spot were even more excited and danced, just like the national football team entered the World Cup, and the whole audience declared a warm "sea".

In contrast, a group of foreigners who were paying attention abroad were dejected and cursed.

"Baga, why did they succeed again?"

"Ah, Ma Tian is from our country, why doesn't he return to our country, smite~"

"Oh my god, God must be joking, a demon like Ma Tian should be killed by a falling rocket!"

...

Of course, there is also a group of aviation experts who are horrified to see the last scene on the right screen.

"Smith, replay the video for me!"

"Osfki, you should have recorded it, replay the last scene just now!"

Perhaps non-professionals only see whether the satellite is successfully launched, but professionals see something deeper.

For example, how can this rocket carry 12 satellites! And are the flight altitudes of these 12 satellites marked incorrectly?

"This is impossible, unbelievable, why can Ma Tian's satellite fly so low?"

"Si Kuo Yi, Ma Tian is really a terrible scientist!"

"Fuck, how did Ma Tian do it? This is too amazing!"

Professionals repeatedly replayed the last scene on the right screen of the live broadcast room.

For them, from the screen, according to the positions and deviation angles of the 12 satellites launched one after another, they can roughly figure out what orbit the 12 satellites will reach and what satellite ranks they belong to.

For example, the aviation experts of Eagle Sauce quickly analyzed that the 12 satellites of Ma Tian will probably be in an ultra-low orbit of 130 to 150 kilometers.

Perhaps everyone thinks that the lower the altitude of the satellite, the simpler the technology may be.

But the fact is that it is very difficult to operate a satellite in an ultra-low orbit, that is, below 200 kilometers.

As we all know, the earth has an atmosphere, 90% of the mass of the atmosphere is below 30km, and above 30km it gradually becomes thinner, and as the altitude increases, the air density drops sharply.

Since the satellite must fly at the first cosmic speed of 7.9km/s to maintain above the earth, it is destined that the flight of the satellite cannot be greatly disturbed.

If the satellite flies in an ultra-low orbit, it means that it will face thicker air. As we all know, the thicker the air, the higher the drag coefficient of the satellite through friction, and the greater the damage.

This is why many satellites have to fly at an altitude of at least 200km, because the air has less impact and the satellite is more stable.

For ultra-low orbit flights between 120km and 200km, the impact of air friction needs to be considered. The lower, the more difficult and the more technical it requires.

As early as 2015, many countries realized the advantages of low-orbit satellites.

According to calculations, if a satellite descends from an orbital altitude of 650km to 160km and maintains stable flight, the radar radio frequency power requirement will be reduced by 64 times, the communication radio frequency power will be reduced by 16 times, and the optical aperture diameter requirement will be reduced by four times if the performance remains unchanged.

In other words, as long as ultra-low-orbit satellites can operate normally, their communication efficiency or reconnaissance efficiency is far greater than that of high-orbit satellites.

Now many satellites are still flying in high orbits above 200km. It's not that they don't want to go to low orbits, but they can't do it.

Now, Tianyu Xinghai has done it easily, and it's still a very low 130 to 150km, which has to make aviation experts around the world who are paying attention drop their jaws.

"How did Ma Tian do it? Or did he only plan to fall down after flying for a while?"

"It shouldn't be, Ma Tian won't make such a mistake?"

"I don't believe Ma Tian can achieve a sustained flight in an orbit of 130 kilometers!"

Immediately afterwards, a group of experts also began to question the altitude of Ma Tian's satellite launch. They didn't believe that Ma Tian could fly at such a low altitude.

Yingjiang has used its low-altitude flying satellite to capture the position of the Tianyu Xinghai satellite below for verification.

The live broadcast has not ended yet, and the rocket booster perspective at the bottom of the left screen is still on.

Musk has been staring at it, without blinking, and he didn't even pay attention to the launch of the ultra-low orbit satellite on the right screen.

In his field of vision, the perspective of the left screen began to get lower and lower, and the situation of the mainland could be seen with the naked eye.

Musk knew that the most critical moment was coming. At this stage, the recovered rocket had to activate the anti-propulsion device for the final precise positioning and landing.

The thing that made him despair finally happened. In the perspective, red flames began to emerge from the bottom, and the appearance of the City of Progress became clearer and clearer.

The screen on the right, which had been black, also began to give a third-person perspective, watching the bottom of the rocket that had been launched in the sky come above the City of Progress and land steadily at the place where it was initially launched.

"It's over!" Musk collapsed in his seat, his right hand inadvertently placed on his left chest. Why did he feel a little pain in his heart?