Chapter 1214: The second generation Beidou ‘two stars in one arrow’

Chapter 1214: The second generation Beidou ‘two stars in one arrow’

It is March now.

The United States is continuing to fight in Afghanistan and Iraq, fighting a security war!

In Afghanistan, the coalition led by the United States has occupied 65% of the territory, reducing the guerrillas' territory to 35%.

All of them are in the mountains.

The coalition's reputation in Afghanistan has soared, as if it is going to completely occupy Afghanistan.

However, the guerrillas' losses are not that great, and the main force is still there. They lost the city, but the mountainous rural areas were not lost.

Last year, the coalition imported 100,000 donkeys and 100,000 mules from China to strengthen the coalition's ground transportation capabilities.

In mountainous areas, many roads are simply impassable, and can only be transported by donkeys and mules.

The United States has thought about building roads.

But under the guerrilla attacks, road construction is simply not feasible.

In Iraq, the United States controls the plains and cities.

But the desert area and the Kurdish mountainous area are still under Saddam's control.

The war is still going on.

However, the Kurdish mountainous area was fought by the Kurdish armed forces, and the Americans did not want to fight at all.

Because the Kurdish mountainous area has perfect fortifications, if the US military went to attack, it is unknown how many people would be killed or injured.

If the Kurds want to establish an independent Kurdish state, then they can fight by themselves, and everything they conquer belongs to the Kurds.

Anyway, the elite land of Iraq is now under the control of the US military. Now the top priority is that the US military must restore oil and natural gas production, including transportation pipelines.

At the same time, clear all the mines in that area of ​​water.

The Japanese took on the task of mine clearance.

In terms of anti-submarine and mine clearance capabilities, the Japanese Maritime Self-Defense Force is still good.

The price the United States paid was a small oil field.

This was only done with the help of the stick and the carrot, and the Japanese were reluctant to do it.

The entire Iraqi joint forces controlled the area and carried out military management, and soldiers from the joint forces patrolled every day.

And the patrol team was attacked every day.

Or there were mines buried on the roadside, and they exploded when stepped on, killing or injuring several people; or an old man passed by a patrol team and suddenly exploded, killing or injuring the patrol team; or an Iraqi woman killed an American soldier while hooking up with him for fun.

Although the war is over, the joint forces are still suffering casualties.

At this time, China entered the two sessions.

From March, it has officially entered the two sessions, and various pre-session preparations and pre-session hot topics are being reported.

Just before the two sessions, Liu Tao came to the Xichang Satellite Center.

Although the Wenchang Space Launch Center is currently the largest and most advanced launch site in China, it does not mean that other space centers are useless and have to be idle.

On the contrary, other space centers are still in operation.

The second-generation "Beidou-1" satellite and "Beidou-2" satellite to be launched this time will be carried into space on the Long March 3B carrier rocket.

This is the first time that China has launched a "two-satellite-in-one-rocket" launch.

At this time, the second-generation Beidou-1 satellite and Beidou-2 satellite have been carried on the Long March 3B carrier rocket.

Various monitoring stations and scientific research ships continuously report data to the Xichang Satellite Center.

At the Xichang Satellite Center, technicians are constantly correcting relevant data in front of the computer. At the same time, the launch pad is displayed on the large LCD screen.

All preparations are ready.

The second-generation Beidou satellite is similar to the first-generation Beidou satellite, with similar size and weight, but the performance has been improved by more than ten times.

This also greatly improves the accuracy of the second-generation Beidou satellite.

For military use, it can definitely reach an appalling level for cruise missile guidance or precision missile guidance.

For civilian use, the accuracy is much higher than that of the first-generation Beidou satellite.

The entire second-generation Beidou satellite navigation system, like the first-generation Beidou satellite navigation system, is composed of 24 Beidou navigation satellites, of which 21 are working satellites and 3 are backup satellites. 24 satellites are evenly distributed on 6 orbital planes, that is, there are four satellites on each orbital plane. The orbital inclination of the satellite orbital plane relative to the earth's equatorial plane is 55°, the right ascension of the ascending node of each orbital plane differs by 60°, and the satellite on one orbital plane is 30° ahead of the corresponding satellite on the adjacent orbital plane to the west. The purpose of this layout is to ensure that at least 4 satellites can be observed at any location and at any time in the world.

Now the second-generation Beidou satellite is to be launched, but it does not mean that the first-generation Beidou satellite is useless. The first-generation Beidou satellite will continue to work for about 1 to 3 years, and will continue to enter the closed state in the relevant orbit later, and will be used in emergency situations in the future, or as a target star for anti-satellite weapon experiments.

"10!" "9!" "8!" "7!" "6!" "5!" "4!" "3!" "2!" "1!"

"Ignition!"

With the "ignition" command, the Long March 3B carrier rocket engine ejected flames, emitting huge thrust, pushing the rocket into space.

Without any accidents, the two second-generation Beidou satellites successfully entered the planned orbit.

Next, the two second-generation Beidou satellites will continuously change orbits and replace the orbital positions of the two first-generation Beidou satellites.

As for why it is necessary to use the orbital position of the original first-generation Beidou satellite, it is naturally because the orbital position of the original first-generation Beidou satellite is the best orbital position after precise calculation.

Good orbital positions are still precious resources.

China has launched so many satellites over the years, and the orbital position of any satellite can be sold for tens of millions of RMB.

Up to now, there are only four space agencies in the world, namely NASA, CNSA, PKA, and ESA!

As for others, satellite launches or participation in space activities are all through these four space agencies.

There was also the Indian Space Research Organization, which was established in 1969 and is India's national space agency. It can be said that it was supported by the Soviet Union. However, in that year, the space launch site of the Indian Space Research Organization was blown up. Later, due to lack of funds, it was disbanded in the 1990s.

Japan once wanted to set up a space agency to carry out space activities, but Japan had a dog leash around its neck, and it could not do whatever it wanted.

For so many years, there is naturally no trace of the space agency.

The four major space agencies have different markets.

Among them, NASA is considered to have the most advanced space technology and is the authority in the world's space field. The launch fee is notoriously expensive, and various political and economic conditions are also attached. The US space field is currently open to private companies.

The Chinese Space Agency is a pure commercial cooperation, without so many conditions, and the launch success rate is also high. It not only helps developing countries launch satellites, but also provides satellite leasing services, and helps Australia, some European countries, and Canada launch satellites.

The Russian Space Agency, which inherited the Soviet space heritage, has also made some moves in the space business.

As for the European Space Agency, it is the weakest of the four major space agencies and the only one that does not have manned space technology. (End of this chapter)