Hand rubbing nuclear fusion live in the wilderness

Chapter 353 Disgusting SpaceX Company
In the control room, a crisp voice sounded, exciting.

Won looked up at another screen on the left side of the log display, which had a real-time video transmitted by the space shuttle.

The picture sent back by the zero space shuttle is exactly the blue and white planet under his feet.

On the right side of the log data display screen, there is another display screen showing various data on the current status of the space shuttle.

This is a data split screen specially made by Won, which can better understand the status of the space shuttle and satellites.

[Current sailing altitude: 164.74 kilometers. 】

[Current power reserve: 69.198%. 】

[Current liquid xenon working fluid remaining: 38.76%. 】

[Current solar power panel temperature: 116°C, highest surface temperature: 278°C, lowest surface temperature: -16°C. 】

[Current electric propulsion-no working fluid engine running status: shutdown. 】

[Current operating status of the electromagnetic propulsion system: normal, operating power 17%. 】

[Current sailing angle of the spaceship: the right wing is positive 12.73 degrees. 】

【.】

The data displayed this time is much more detailed than when the space shuttle stopped at an altitude of [-] kilometers for self-inspection.

Various information including flight angle and flight speed are displayed.

His eyes flicked across each piece of data, and after confirming that there was no problem in general, Han Yuan turned his gaze to the display screen in the middle.

After the space shuttle successfully enters the orbit and the self-inspection is completed, it is time to launch the 'satellite zero'.

This is the most critical step.

After waiting for a while, on the display screen, the command log for launching the satellite was fed back in real time.

"Preset order 118 executed."

"Execution result: success, the satellite launching window is opened, the mechanical arm is unfolded, the satellite is slid out, and the launching work is ready."

"Preset order 119 executed."

"Execution result: success, the launch of the zero satellite series 'Zero One' has been completed."

"."

"Preset order 120 executed."

"Execution result: success, the output power adjustment of the electromagnetic propulsion system is completed, the right-wing auxiliary small electric propulsion engine No. 03 is started, and the orbit of the space shuttle is normal"

"."

On the display screen, the log of the satellite's completed launch was fed back, and Won's eyes flashed back and forth between the log display screen and the video display screen.

The log can judge the success or failure, and the video can see the launched satellite, although the visible time is very short.

The first satellite launched was named 'Zero One', followed by Zero Two, Zero Three, Zero Three and so on.

Of course, if it exceeds ten, it will become zero one zero, and so on.

With hundreds of satellites, Han Yuan didn't bother to think about it, and didn't want to name them one by one, so it would be better to increase the number directly.

Simple and convenient, and will not repeat.

As the 'Zero One' satellite was launched, a small long column appeared on the display screen, which was exactly 'Zero One'.

It was captured by a camera mounted on Space Shuttle Zero.

But soon, the figure became smaller and then disappeared into the pitch-black space.

Because the space shuttle is moving, it has the extra power provided by the electromagnetic propulsion system, and when the launched satellite does not start its own small electric propulsion engine, only the gravity of the earth pulls it to move around the ball. , the distance between the two will soon be widened.

When the figure of the No. [-] satellite disappeared on the screen, the commands preset inside the satellite were also started and executed simultaneously.

First, the gallium-lanthanide-silicon solar panels attached to both sides of the satellite are slowly unfolded, and the lithium-sulfur battery with full energy storage provides enough energy for the robotic arm to support its initial activities.

Then under suitable conditions, the folded and compressed memory metal antenna began to recover.

These two steps are performed first after the satellite is launched into space.

Of course, to be precise, what was executed should be to deploy the solar power generation panels, and the memory metal antenna was not included in the execution order, because it would automatically deploy under suitable conditions.

The 'Zero One' satellite is unfolding itself, and the space shuttle Zero that has already flown out begins to launch the second satellite.

Although space is large and satellites are small, in fact, the number of satellites that can be accommodated in low-Earth orbit is limited.

Because the satellites fly very fast, coupled with the interference of orbital perturbation, the satellites must maintain a sufficient distance to ensure mutual safety.

It's like a car has to maintain a certain braking distance, except that the braking distance of the satellite is much longer.

Currently, the internationally accepted safe distance for spacecraft is 50 kilometers.

Calculated according to this standard, a total of about 400 satellites can be accommodated in a low-earth orbit with an orbital altitude of 2000-6 kilometers.

This is low earth orbit.

And if it is a geosynchronous orbit, this number will be even smaller. In theory, there are only 1800 available satellite parking spaces.

This is because the inclination of the geosynchronous orbit must be zero degrees.

As for why there are so many more low-earth orbits than geosynchronous orbits, it is because the center of the low-earth orbit only needs to pass the center of mass of the earth.

There is no limit to the inclination angle of the satellite, so this also allows more satellites to be deployed in low-Earth orbit.

Although low-Earth orbit can accommodate [-] satellites, this number is not enough for human beings.

Let’s not talk about the satellites launched by various countries.

The Starlink project of SpaceX in the United States alone is planning to launch 1.2 Starlink satellites into space.

But according to relevant documents, SpaceX is also preparing to add another 3 satellites, bringing the total number of satellites to about 4.2.

In this way, there are less than [-] satellite parking spots left for others in the low-earth orbit of the earth.

Immediately after removing the current satellites, space stations, telescopes, detection mirrors and other equipment, I am afraid that there will be very few satellite parking spots left for other countries.

In a sense, SpaceX and NASA of the United States can be said to be using orbital resources as a weapon of exclusive competition.

Because according to the current international rules of “first come, first served” for satellites, any subject, no matter a country or a company, has the right to require subsequent satellites to evade its satellites after obtaining a certain orbital plane.

In other words, any company that deploys enough satellites on the same orbital plane can ask other satellites to keep evading, which is equivalent to occupying this orbit at the de facto level.

Another disgusting thing is that the space navigation safety agreement signed by SpaceX and NASA stipulates that the safe distance between Starlink satellites and other spacecraft is only five kilometers, far below the international standard of fifty kilometers.

This is why after 1800 Starlink satellites went into space, there will be frequent collisions between Starlink satellites and other satellites.

Not only did China's space station evade Starlink satellites twice, but the European Union's weather satellites and even military satellites also evaded them urgently.

In addition, there is another very big problem with SpaceX's Starlink satellites. Space has guaranteed that the Starlink satellites will fall into the atmosphere and be destroyed autonomously and controlledly after their 5-year working life expires.

But in fact SpaceX did not realize this plan.

According to NASA statistics, as of 2019, more than 5% of Starlink satellites have failed, but they are still hanging in the sky and become space junk.

Unless a country can shoot down these out-of-control satellites, these satellite parking spots will be abandoned for a long time.

This is also the main reason why South Korean Won's favorability with SpaceX and Musk has dropped again and again after the start of the Starlink mission.

When a company forms a monopoly position, it is extremely unfriendly to the ecological development of the entire society.

As the space shuttle goes away, the second, third and subsequent satellites are being launched into low-earth orbit in a stable and orderly manner, spreading their wings and heads.

The "15" satellite launched before, after [-] minutes, has completed the deployment of solar power generation panels, the recovery of signal receiving and transmitting antennas, satellite self-inspection, and the connection of detection equipment.

Now it is its turn to establish a communication link with the ground and pass on reconnaissance information.

Staring at the display screen, it was inevitable that Won was still a little nervous and apprehensive.

If countries on the earth launch satellites, it should be the command center on the ground to establish contact between the ground and the satellites.

The command center needs to send a signal to the satellite, and then get a response to control it.

But Won can't waste time on this, he is too short of manpower.

This kind of programs and things that require manual control and command are not suitable for him. The best choice is still to do intelligent programs and do fixed automatic processing.

Through the supporting procedures, for example, after the satellite completes the self-inspection, the signal sending and receiving device is automatically activated, and the preset command is sent to the ground.

This method is the same as the zero space shuttle, which greatly saves capacity.

However, the preparatory work in the early stage and the calculation requirements for data such as outer space conditions, space shuttle flight/satellite orbit flight, etc. are very demanding.

Putting it into reality, even if countries have supercomputing and the assistance of countless scientists, this method is not practical.

To be precise, it will not do so.

Not only because of the huge cost, each launch needs to consume several tons of liquid xenon working fluid.

It is because of the development into the 21st century that there are already tens of thousands of satellites and countless space junks hanging in the sky.

Fortunately for the former, satellites in normal operation basically have corresponding filings and records in the space agencies of various countries, and it can still be avoided through calculation.

But the latter is a tiankeng.

Whether it is a satellite that has lost contact or disintegrated satellite garbage, many of these things are difficult to calculate.

Space junk can vary in size. Generally speaking, all countries have radars that can record captured space junk in a database and keep track of it.

Before the satellite is launched, the space agencies of various countries will select the launch window period according to the database and the type of current satellite launch mission, so that the satellite can avoid large pieces of garbage and complete the work.

But even so, it is not uncommon for launch failures due to launch vehicles or satellites encountering space junk during the launch window period.

On the side of the simulated planet, the space is still barren without any obstacles, so there is no need to consider these things.

In addition, the primary aerospace application knowledge information in his mind has this kind of data, which is complete and detailed.

Won does not know where the system collects these data, but the information is indeed useful.

The normal launch of the space shuttle and satellites has verified the availability of these data.

After waiting for a while, not long after, the first satellite "Zero One" sent back the signal command requesting connection, which was received by the signal tower deployed at the base, transmitted to the central computer and displayed on the screen.

In the computer room not far away, after the central computer received this signal, the preset command was quickly activated.

After a series of verifications are passed, the central computer completes the signal reception and feeds back the corresponding data information to the satellite.

"Information verification passed!"

On the display screen, a message appeared.

"Pretty!"

Han Yuan squeezed his fist and let out a low cry of excitement.

At this point, it has been confirmed that the communication between the satellite and the ground is normal.

The rest depends on the operating status of the satellite, such as its operating altitude and operating angle, and whether the detection function is normal.

For these things, there are corresponding inspection plans in the preset commands. After the waiting time passes, the satellite can handle them automatically.

As the time passed, after the 'Zero One' satellite completed its communication function test and connection, the follow-up tests were also proceeding in an orderly manner.

"Zero One Satellite preset order 03 to execute."

"Execution result: success, the establishment of satellite-ground communication is completed."

"."

"Zero One Satellite preset order 05 to execute."

"Execution result: success, the photoelectric remote sensor and radar are powered on, and the equipment is successfully started."

"."

"Zero One Satellite preset order 10 to execute."

"Execution result: success, the current satellite synchronous orbit inclination angle is 17 degrees, the comparison result is completed, and the satellite orbit inclination angle is being adjusted."

"."

A series of various commands are continuously and automatically executed, and the logs transmitted back are also displayed on the display screen in the control room, which is reflected in the eyes of Won and the audience in the live broadcast room.

The central computer deployed in the computer room ushered in the busiest day since its birth.

Because over time, each satellite will transmit the signal back and establish a connection with it.

In addition to the execution of the corresponding programs and commands, the central computer also needs to store the information and reconnaissance images transmitted by the reconnaissance communication satellite.

The supporting magnetic storage device has not stopped since it was started today, and it has been spinning non-stop.

Fortunately, when the Korean won decided to modify the communication satellite, it exchanged a large number of magnetic storages through technology points, and connected them to the central computer one after another.

This ensures that the information transmitted by the communication and reconnaissance satellite has enough locations to store.

You must know that the information sent back by the photoelectric remote sensor will eventually be converted into video, and a video, after being converted into binary code, is quite huge.

(End of this chapter)