Chapter 317 Dreams always come true!(1/2)
For many ordinary people, the most complicated part of life is probably that although he is ignorant, his life has been arranged clearly.
It’s just that some arrangements are rare luck in life for them, while others are pure tragedies.
When I was a teenager, I liked the rebellious sentences that my fate was from me but not by heaven. Often, people only knew how good this rebellious sentence could be when they were middle-aged.
Fortunately, there is no such worry for the first interstellar explorers who are in deep space.
The three-day voyage from Earth to the Moon, except for checking the situation on the spacecraft every day and reporting some situations to the command center on the earth at a specific time, most of the other time is boring waiting.
After experiencing the excitement of looking at the earth from space, I was actually very bored most of the time.
Especially when the technology is not so advanced, considering the extreme situations that may occur, the spacecraft cannot successfully connect with the material compartment at the near-month point, so the spacecraft also needs to carry spare return fuel and basic living supplies.
This further compressed the activity space of the eight astronauts who landed on the moon for the first time, and also made this great exploration journey.
It's far less comfortable and romantic than the cosmic explorers in science fiction movies.
Even completing daily exercises requires four time periods to be divided into two groups.
Fortunately, the first eight astronauts to land on the moon had undergone relevant training on Earth before.
After all, according to the plan, they have to overcome many difficulties on the moon and live for nearly a month. As Qiao Yu said, for the rigorous Chinese astronauts, they have long thought of all possible situations in recent years.
As for astronauts, they suffered a lot on Earth. Of course, this is normal.
You should know that the eight lunar astronauts who were selected finally stood out from the eight hundred most elite pilots in China through layers of assessment. They were selected from the best in all aspects, and they were all determined.
So during the three-day voyage, there were no small episodes worth mentioning.
After a long 71-hour voyage, the spacecraft arrived at the near-month point twenty-eight minutes earlier than originally planned.
At this time, the command center on the earth became nervous again.
Although there was no choice to broadcast directly to the outside world in the following recent months, the atmosphere in the command center was obviously more solemn than during the live broadcast.
This can be said to be the first time in human history that it is docking around the moon orbit. Although whether the docking is successful does not actually affect the moon landing, it directly affects whether the first human lunar landing base can be successfully built on the moon.
After all, this is an event that should really be recorded in the history of human civilization. If it were just a moon landing, it would have done it decades ago.
There is no live broadcast, not because there is no confidence, but because the technology is too advanced and inconvenient to display it to the public.
Although a lot of docking technology has been accumulated in the space station, the situation is different this time.
Apart from 360,000 kilometers, the speed of light requires about 2.4 seconds of delay without considering any loss.
Considering the attenuation of the signal propagation process and the conversion time of reception and reading, the difficulty of the monthly track docking can be imagined.
You should know that whether it is a manned spacecraft or a metropolitan spacecraft, in order to maintain the near-month orbit, the speed needs to be maintained at about 1.6 kilometers per hour.
It's really a slight difference, but a thousand miles of mistakes.
In addition, the uneven distribution of the moon's mass leads to orbital perturbation, and the trajectory needs to be corrected in real time.
In addition, the ground control center cannot directly control the spacecraft's attitude, so it must rely on a fully autonomous navigation system.
The above are not the most difficult ones. After all, before this docking, E-5 had already achieved the docking of the unmanned orbiter and the return capsule, and the entire process was completed independently, with an error of less than five centimeters.
But the situation this time is different, because whether it is a manned spacecraft or a metropolitan spacecraft, the mass is incomparable to the unmanned orbiter and the return capsule. According to the calculation, the momentum of inertia is 7.6 times that of previous docking.
Of course, the techniques used this time are also different.
The last time I used pure autonomous LIDAR navigation, and this time it was AI prediction control plus quantum inertial navigation, using a triple heterogeneous computer voting decision system.
These are not convenient to be publicly announced for the time being.
However, the moon landing process will still be broadcast after the successful docking. Moreover, it is not immediately after the docking, and it will probably take a few hours to go on the moon orbit.
There is also plenty of time to promote.
The location chosen for this moon landing is also different from the sixth time in Xida in history. It is chosen near the Shackleton Crater on the South Pole of the Moon.
The reason for choosing this location is also very simple, because this time we will build the first one. On the one hand, the bottom of the crater here is in shadow for a long time and there is no sunlight, so there may be moisture caused by asteroid impact, which has extremely high research value.
On the other hand, the mountains on the edge of the crater can receive sunlight more than 80% of the year due to the inclination angle of the moon.
This means that in the early stage when it is unlikely that nuclear power plants will be built on the moon and there will be no too many energy storage equipment, only a small amount of solar panels will be required to provide sufficient electricity for small scientific research bases.
Everything is calculated very rigorously and has a surplus. A small scientific research base requires about 18 kilowatt-hours of electricity per day, communications and experimental equipment.
This time, the space-grade photovoltaic panels brought to the moon can reach 45%, while the solar radiation intensity of the moon is about 1361.
W/m2.
Without considering attenuation, the power of photovoltaic panels per square meter can theoretically reach 612.45W per square meter.
With the extremely long light time of Yongzhou Peak, basically laying three square meters of solar photovoltaic panels is enough to meet the daily needs of the scientific research station.
Of course, it is impossible that they are all theoretical values, but this time the photovoltaic panel brought to the sky is enough to cover 50 square meters after being unfolded, which is far beyond the theoretical requirements.
The main thing is to consider that the construction is carried out in the early stage, and the electricity required is relatively large.
Although everything is considered well, the most important thing now is whether the docking of the spacecraft in the near-moon orbit can be successfully completed.
Now it is the most critical time, and the two high-speed moving spacecraft are approaching quickly according to calculations.
Even astronauts can already see the cargo spacecraft through cameras outside the spacecraft.
At this moment, even Zheng Xiwen, who was by Qiao Yu's side, couldn't help but become nervous.
Although he doesn't know much about engineering technology, he is very clear about how difficult it is to perfectly connect.
The most important thing is that this directly determines whether humans can build bases on the moon this time.
If the connection fails, there is no need for live broadcasts in the next moon landing. After all, China's ambition is to directly broadcast a one-month live broadcast next.
It is exciting to let the whole world see how the first lunar scientific research base was built in human history.
Zheng Xiwen was still hoping to see the day when China was officially stationed at the lunar base.
Qiao Yu felt this nervous attitude, turned his head and looked at Zheng Xiwen in a strange way, and asked, "No, Lao Zheng, why are you nervous?"
"Ah? Is it so obvious?" Zheng Xiwen asked subconsciously.
Of course, Zheng Xiwen knew that he was almost nervous, but he really didn't expect that he would show it.
"You forgot that my ears are very good! Your breathing is much heavier than usual! Look, your fists are clenched. I told you that the command room screen and what is happening in reality have a delay of about 4 to 5 seconds.
So there is no need to worry at all. When you see the two spacecraft getting closer, the moon has actually been successfully connected. Both spacecraft can land hand in hand."
Qiao Yu said some nonsense easily.
Zheng Xiwen actually knows all this.
When he came in just now, Yu Yanjiang had actually explained all the situation to Qiao Yu. He was not deaf, so he could hear it very clearly.
"How could you be so relaxed?"
"Because of self-confidence! So Lao Zheng, you are still not confident enough in your subconscious! As long as you can be as confident as me, I believe that this connection will be 100% successful, you will not be nervous about gains and losses!" Qiao Yu said disdainfully.
Zheng Xiwen was speechless.
Sure enough, scientists have no other people to do anything when they become idealistic! Those who could shout the slogan of man’s victory over nature probably wouldn’t be so confident.
"Of course this confidence did not come out of thin air. You also know how much effort we have made for this action. How many times have more than ten engineers tested it! When we were doing simulations, we took all kinds of difficulties into consideration.
Even the difficulty is N times more difficult than the reality. In the most extreme cases, we can successfully connect, not to mention that we have not encountered any extreme situations at all. I can't even think of any problems that can lead to accidents."
"But the new technology used this time - Mr. Yu just said that they estimate that the success rate is only 80%-"
"Don't listen to Mr. Yu, their habitual pessimistic thinking patterns in engineering. You just like to say that you should not be sure of winning, but you should think about defeat first? What is 80%? Just give you a low expectation!
This way, it will be 100% more successful when he reports to the upwards! He really wants to tell the truth, success is 100%.
I’ve been thrusting my expectations in advance, so there will be no surprises if I succeed? And what if I don’t have a 100% success rate next time?”
Qiao Yu said disdainfully.
Zheng Xiwen was stunned when he suddenly heard a cheer from the command center hall below.
When he subconsciously looked up at the screen, he found that the two spacecraft were already tightly attached to each other just now.
Seeing the crowds of people jumping up and hugging each other in the command hall below, Zheng Xiwen was in a trance.
What a good guy, just in just a few words, the two spacecraft in the moon orbit really docked successfully?
"Look, I'll say it, it's not as difficult as you think. Those who are doing projects are the dirtiest! Don't say the difficulty is a bit more difficult, no one will believe it next time they emphasize the difficulties."
Qiao Yu spread his hands and said calmly.
Zheng Xiwen was very excited and didn't know what to say. Well, anyway, it was successful, and Qiao Yu said everything was right.
He even began to believe that what Qiao Yu said would be true. Those scientists who are engaged in engineering are really accustomed to making the difficulties bigger.
However, he didn't give him much time to react. The door of the command room located above the command hall was suddenly pushed open. Then Yu Yanjiang rushed in directly, then hugged Qiao Yu and started roaring.
"The docking was successful! We were really successful! Who can believe that we can really build a base on the moon? The moon is the moon 380,000 kilometers away-"
It can be seen that the old man was indeed very excited and began to speak incoherently.
You know, this is also a great academician! Zheng Xiwen has never seen this deputy commander-in-chief lose his composure.
"No, Mr. Yu, don't be so excited. Isn't this just that the docking is always successful? Next, the moon landing is the highlight!"
Qiao Yu was speaking to soothe Yu Yanjiang's emotions.
To be continued...