I have a little black hole

496 Pursuing the launch of'zero window'

Xiong Antai, as a senior executive of the company, feels very envious of Academician Yang's enthusiasm. He is also attracted by the company's very good research environment.

"Yes, your company has dug dozens of experts and researchers from our aerospace department. If the conditions are not good, how could they jump from the national key laboratory to your company!

If it weren't for our cooperative relationship has been very good, these experts and researchers look at whether we will let go!Get cheap and sell well!Yang Mingliang looked at Xiong Antai contemptuously and said.

"Haha..."

His words also made everyone who heard them laugh, and indeed, people from the aerospace department went to the laboratory and workshop here, hey!Many acquaintances!

Everyone was talking and laughing while inspecting the detection and monitoring tasks that the two parties cooperated with. The launch was less than a week away. These tasks are related to whether the rocket can be launched in window time on time!

What is a launch window?The launch window refers to a suitable time range for launching the launch vehicle. The size of this range is also called the launch window width.For spacecraft, the choice of launch window is crucial.

Although the length of the launch window has a certain time, launching at the front and back points of the launch window has different effects. The launch window will not change under normal circumstances, but it is not absolute. If the weather does not help, the time will be adjusted.

According to various constraints, the launch windows of various types of satellites are also regular.For different satellites, even if the orbit is the same, there may be a big difference in the launch window.

Generally speaking, due to the long range of the rocket launch segment when launching a geostationary satellite, the angle between the meridian plane where the launch point is located and the main axis of the transfer orbit (the connection between the perigee and apogee of the orbit) is large. It was carried out at a remote location on the transfer orbit.

If the apogee should be in the daytime environment in order to meet the constraints of the solar angle and the solar-terrestrial opening angle, then the launch of the geostationary satellite will be carried out at night.The width of the emission window is generally about 1 hour.

"Academician Yang, based on the current observation data, can we achieve a "zero window" launch? Although our satellites and space telescopes have a surplus of fuel, we can reduce the amount of fuel they consume when they orbit. Alright!

So that they can stay in space a little longer, especially the space telescope, our company has not yet mastered the technology to refuel them in space.

If we want them to provide stable observation data to our company, the longer they stay in space, the more data we get.Zhang Hanxiu asked with a smile.

To be honest, the pressure during this period of time is really too great. The performance of the three satellites and the two space telescopes, whether they can work normally after launching into space, and how long they can work are all things he has to consider.

As the person in charge of the deep space laboratory, the pressure that these things have brought him has made him sleepless for several days, so now he is a little upset and everyone can understand.

"Director Zhang, you don't have to worry so much. According to the data currently observed, even if we can't launch a "zero window", then they can be launched into space one by one within the prescribed launch window!

And you choose to launch in the winter is also a very correct choice. There is not much rain here in the South Island throughout the winter, and there are not too many tropical cyclones, so the time when the wind speed is suitable for launching is more.

These conditions, together with the rain bomb you applied for, should allow your rocket to be launched in the launch window.

Also, as you said, your launch vehicle technology is really very advanced, with a load almost double that of the Falcon 9 of the same size, which allows your satellites and space telescopes to carry more fuel and equipment.

With the fuel surplus, even if it is not in the "zero window" launch problem, it is not a big problem, so you should not be so tight all the time, always so nervous, it will also adversely affect the mission!Yang Mingliang persuaded with a smile.

He is also understandable about Zhang Hanxiu’s tension, after all, this is his first time as a leader to perform rocket satellite launch missions.

Moreover, it is still possible to launch five payloads in his laboratory in a short period of time. It is impossible to let him not be nervous, so I can only comfort him more.

"That's what I said, but I still hope that our rockets can be launched in the special window of "zero window", which will allow our satellites and space telescopes to stay in space for a few more months, which will also bring the company Come for more benefits!" Zhang Hanxiu said with a smile.

The reason why he always wanted to allow the company's satellites and space telescopes to launch in the "zero window" launch time period, mainly because this launch window is really the most suitable!

Theoretically speaking, the rocket lifted off in the launch window and put the satellite into a predetermined orbit, all succeeded."The so-called'zero window' can be regarded as being launched within one second of the set launch time.

But generally speaking, the "zero window" actually has a certain time width, and it is necessary to aim at the front of the window to launch.This kind of on-time launch will make the satellite more efficient when it orbits after being sent to orbit, which will save more fuel and the subsequent work will be smoother.

During the launch of the'zero window', there is almost no room for adjustment of the rocket's launch time, and the method of regularly controlling the ignition of the rocket is usually used to achieve the launch of the'zero window'.

The "zero window" launch pursues "zero errors, zero errors, zero failures, zero defects, and zero omissions". If you want to achieve the "zero window", you have to go through all the difficulties.

Rocket launching is a complex system project. Tens of thousands of sets of equipment must be trouble-shooting, risk analysis, and operating experiments. Thousands of positions must be coordinated and coordinated.

If any equipment fails, any position is negligent, and even some operators even sneeze, the "zero window" will pass by.

In order to ensure that the rocket can be launched in the'zero window', the launch center must carry out support work in accordance with high standards required by the quality system.

The first is the security of the personnel, the second is the security of the equipment, the second is the specification of the experimental documents of various systems, and the security of the command system software, satellite and rocket software and other software.

The meteorological system is required to accurately and meticulously forecast meteorological elements such as lightning, precipitation, temperature, wind direction and cloudiness in the launch window.