Super Weapon Swap System

In the world, there are few countries that can launch satellites, and even fewer countries that can launch synchronous satellites. In the past, Han had to rent synchronous satellites from other countries for communication, which is quite unfavorable to national defense and security.

For example, for a long time, the connection between submarine and shore has mainly relied on long wave radio. This long wave can spread close to the earth's surface and far away sea areas. However, the speed of this transmission is very low. It takes a few minutes to pass a command of more than a dozen words.

The longer the wavelength, the less information carried on the carrier. In contrast, looking at the microwave, the amount of data carried is quite large.

Therefore, the long wave method will not be used slowly. Submarines use more satellites for communication. If they continue to rent foreign satellites, it is obviously unfavorable to submarines. If they rent others, who knows whether they have come to monitor?

Therefore, it is also inevitable to develop communication satellites in China.

Now, the satellite is being launched.

An ordinary satellite is enough to be launched, but now this kind of synchronous satellite will last for several days.

Now, the satellite has entered the last circle of the large elliptical transfer orbit. According to various data, it has the best ignition conditions for the second ignition in the air.

The satellite measurement and control center in Beijing is very nervous. Everyone is staring at the curve on the big screen. There is an actual curve and a theoretical curve. Only these two curves come together can we succeed.

"Attention, now enter the ignition countdown!" a voice sounded in the hall of the measurement and control center.

The sound spread to the sea synchronously. People were also very nervous on the survey ship yuanwang-1.

Colonel Chen stood in the cabin and looked at the row of operators in front. Qin Guan could feel this tense atmosphere next to Colonel Chen.

"Countdown!"

Countdown, once a product of science fiction, existed in science fiction before humans entered space. Later, scientists thought it was good and used it in space.

When the countdown reached zero, the operator pressed the button, and through the huge antenna of yuanwang-1, electromagnetic waves shot into space.

At this time, the satellite just passed over the head of yuanwang-2.

A series of data were injected into the satellite, the tail of Dongfanghong 2 satellite, and the engine ignited immediately!

The hot flame from the liquid hydrogen and liquid oxygen engine pushes the satellite forward in the dark space.

If it doesn't accelerate, it begins to fall along the curve towards perigee! And now, its height has not fallen!

On yuanwang-1 measuring ship, the radar monitors the movement of the satellite, and a series of monitoring data appear on the terminal after computer conversion.

On the screen, the curve marking the inclination of the satellite fell rapidly, while the apogee height line jumped up.

"Satellite ignition succeeded!"

"The satellite has entered quasi synchronous orbit."

When they heard the news, everyone cheered.

Qin Guan frowned: "what is quasi synchronous orbit?"

According to Qin Guan's assumption, as soon as the engine is turned on and the satellite is pushed up, isn't it already in orbit?

Hearing Qin Guan's question, Colonel Chen explained: "Mr. Qin, we still have many tasks, and the work is far from over. Now this is a quasi synchronous orbit, which means that we have become a synchronous satellite, but our satellite has not reached the designated position, as if we have arrived at a village and are going to a household."

Qin Guan realized that there were still many things to do!

Launching a synchronous satellite is definitely not easy.

"Specifically, our current satellite is still in a horizontal state. We need to make the satellite stand up, which requires sending a series of instructions. At the same time, we also need to establish a drift speed for the satellite to drift slowly towards the final fixed-point area."

"When the satellite drifts to the predetermined area, it will stop?" Qin Guan asked.

Mr. Chen nodded: "Yes, Mr. Qin, your thinking is very sharp. We have to send braking instructions to the satellite through the remote control system to fix the satellite over the 36000 km high equator. The drift process of the satellite in space takes one week and a half months. During this period, the satellite should be telemetered and monitored every day to prevent it from slipping out of the specified circle. It can only drift five or six degrees every day."

With that, Colonel Chen made an example: "it's like driving a cart. If the animal is not obedient, shake it with a whip and be ready to whip it at any time. The whip keeps shaking to make it honest."

Qin Guan nodded: "it must be all about our survey ship in the Pacific Ocean. In fact, it's just for us to follow. It's entirely for our additional task this time."

When Qin Guan said this, Colonel Chen finally gave a thumbs up and said that Qin was always versatile and understood everything. Sure enough, nothing could be concealed from President Qin.

In order to monitor the satellite, there are survey ships in the three oceans. However, when the satellite has entered the quasi synchronous orbit, it is actually over the Pacific Ocean. At this time, only one survey ship is enough. They can't see it half the earth. Here, they are just to cover the Navy's investigation.

Qin Guan had a smile on his face and understood everything. He also gained a lot from launching the satellite this time.

To realize global communication, we need at least three satellites, so in the future, we will certainly launch man-made satellites at other locations.

These days, waiting for the silver country to continue to hold back big moves.

Qin Guan stayed on the survey ship for another day. He was preparing to go back to the destroyer. He came to the cabin of the survey ship again, but found that everyone was very anxious and seemed to be discussing something.

"What happened?" Qin Guan asked involuntarily.

"Our satellite's measurement and control task has been completed. It had nothing to do with us, but now, if there is something wrong with the satellite, we should work together," Colonel Chen said.

Sure enough, something happened to the satellite?

With a bitter smile on his face, Colonel Chen said, "our satellite suddenly has a fever."

Have a fever?

Space is cold. When it comes out of the atmosphere, outer space is almost the order of absolute zero. Only when it is irradiated by the sun, the temperature on the satellite will increase slightly.

Therefore, on artificial satellites, you don't have to worry about how to dissipate heat. What you need to worry about is how to keep warm.

Now this satellite suddenly has a fever!

The so-called satellite "fever" refers to the sudden heating of the battery on the satellite, causing the temperature of the satellite to rise.

Originally, according to the design requirements, the maximum battery temperature on the satellite could not exceed 30 degrees, but now, in less than half an hour, the battery on the satellite has a "high fever" to 60 degrees!