Galaxy Technology Empire

June 1, 2020.

At 20:17 Beijing time, ten hours have passed since the Conqueror 1 spacecraft left the new Kaohsiung Space Station.

Ma Wu has closed the live broadcast room. Due to the very long distance, the communication delay has been very obvious, and he must concentrate on commanding the spacecraft.

Ma Wu looked at the flight coordinates of their spacecraft and the distance to the moon, and calmly ordered Zhu Gang: "Start the deceleration engine and reduce the flight speed."

"Received." Zhu Gang immediately started the deceleration engine.

Immediately, the three engines installed in the seven-in-one cabin in the middle were ignited and started, and the Conqueror 1 spacecraft began to slow down slowly.

Why is the Conqueror 1 spacecraft slowing down?

Because the Moon's gravity is smaller than that of the Blue Star, this means that its first cosmic velocity is lower than that of the Blue Star.

According to the relevant calculation formula G*M*m/r^2 = m*(v^2)/r (G gravitational constant, mass of the celestial body orbited by M, mass of the orbiting object m, radius of r orbit, speed v.), we We get v^2 = G*M/r.

The moon's radius is about 1,738 kilometers, which is 3/11 of the Blue Star, and its mass is about 735 billion tons, which is equivalent to 1/81 of the Blue Star's mass.

The first cosmic speed of the moon is about 1.68 kilometers per second. According to: V^2=GM(2/r-1/a), a is the semi-major radius of the orbit of the artificial celestial body, a→∞, we get the second cosmic speed Speed ​​V2=2.38 kilometers per second.

If the Conqueror 1 spacecraft does not slow down and the moon's gravity is turned off and cannot capture the Conqueror 1 spacecraft, the consequence will be that the spacecraft will fly directly over.

Therefore, the Conqueror 1 spacecraft must slow down its flight speed so that the moon's gravity can capture Conqueror 1.

As the deceleration engine discharged blazing fire, the speed of the Conqueror 1 spacecraft slowed down more and more, until it was about 5,000 kilometers away from the moon, and the speed finally dropped to 1.67 kilometers per second.

This speed is already lower than the moon's first cosmic speed, and the Conqueror 1 spacecraft has begun to cut into the lunar orbit.

"Enter the lunar orbit and start orbiting." Ma Wu calmly ordered.

"Received." Zhu Gang smoothly operated the spacecraft and began to orbit the moon.

However, the spacecraft is still about 4,200 kilometers away from the moon at this time, and they must maneuver around the moon while changing orbit to approach.

"Conducting the first maneuverable orbit change."

…

"Carry out second maneuvering orbit change."

"Report is that the new Chang'e-1 has successfully decelerated into the moon's orbit and is currently 2,400 kilometers away from us. Everything is normal for them," Qin Hailu said.

"Reply to them."

"receive."

Ma Wu looked at the display screen of the instrument. At this time, their spacecraft was less than 1,500 kilometers away from the lunar surface. Only one more maneuverable orbit change could enter the moon's low-Earth orbit.

Didi...an alarm suddenly sounded.

[alarm! alarm! There is an object approaching at position 671/159/450. It is initially detected as an asteroid with a diameter of about 0.4 meters...]

[alarm! alarm! There is an object approaching at the position of 673/157/450. It is initially detected as an asteroid with a diameter of about 0.1 meters...]

[alarm! alarm! There is an object approaching at position 677/159/410, initially...]

"Activate the shield immediately." Ma Wu made a quick decision.

"receive."

After a while, more than a dozen asteroids encountered them. Conqueror 1 faced the asteroids head-on with its shield.

There was a slight shaking, and the monitoring system showed that two asteroids hit the shield, but these asteroids were obviously unable to shake the condensed matter shield.

About two minutes after the impact, Conqueror 1 and the asteroid group completely missed each other.

"Close the shield, and Hailu will inform the new Chang'e-1 about the asteroid and tell them to be careful."

"Received." Zhu Gang turned off the shield system.

"Received." Qin Hailu sent relevant information to the new Chang'e-1.

Although the asteroid group had already missed their spacecraft, Ma Wu did not take it lightly. These asteroids should be fragments that broke away from the previous WX asteroid (Iron Star 1).

The Space Development Committee had already predicted that they might encounter an asteroid. At that time, the WX asteroid scattered no less than 200,000 pieces of debris in the lunar orbit.

After more than half a year of evolution, there are still about 30,000 fragments remaining in the lunar orbit. These fragments have turned into new asteroids. If they are not cleaned up, it is estimated that it will take decades to fall to the moon. ground.

Sure enough, during its third maneuver, Conqueror 1 encountered two more waves of asteroid impacts.

"Successfully entered the lunar low-Earth orbit of 300 kilometers, with an orbital inclination of 12.67 degrees and an orbiting speed of 1.67 kilometers per second." Zhu Gang finally breathed a sigh of relief.

"It has been successfully connected to the lunar satellite network, and the communication system is all normal."

The Lunar Satellite Network is the Space Development Council's positioning and communication system on the moon and consists of 12 lunar synchronous orbit satellites.

The moon's synchronous orbit satellites are different from those of Blue Star. Because the moon is tidally locked by Blue Star, the front side of the moon always faces Blue Star. There is no way for lunar synchronous satellites to be fixed over an area.

Ma Wu took over the driving of the spacecraft and let Zhu Gang take a rest. Although Conqueror 1 was part of the lunar space station, it did not carry solar panels.

Because it uses a nuclear fusion battery (miniature nuclear fusion reactor), this nuclear fusion battery is only about 50 kilograms. The DD nuclear fuel it carries can keep the nuclear fusion battery running continuously for about 5 to 15 years.

Since there is a stable nuclear fusion battery, there is no need for solar panels. Although solar panels have been very lightweight after so many improvements, the structure of the solar panels is indispensable. If the solar panels are installed, It's not 50kg anymore.

As for the backup issue, don’t worry. The new Chang’e 1 also carries a nuclear fusion battery, plus the space station’s battery and hydrogen generator system. Even if one of the nuclear fusion batteries has a problem, it can be dealt with in time.

"Team Cavalry, the new Chang'e-1 has entered 300 kilometers of the moon's low-Earth orbit and is approaching our orbit." Qin Hailu reported to Ma Wuhui.

"Reply them, we are ready to dock and merge in half an hour."

"receive."

the other side.

The new Chang'e-1 spacecraft.

"Standing team, Conqueror 1 is ready to dock and merge. It will dock in half an hour. The specific time is 1:06 am on June 2, 2020." Correspondent Song Quanshenghui reported.

"Reply to Conqueror 1 and agree to dock and merge according to the scheduled time." Chang An ordered meticulously.

"receive."

Half an hour later, the new Chang'e 1 and Conqueror 1 were slowly connected together. However, unlike ordinary space station cabin dockings, they were not docked end-to-end, but side-to-side.

The seven cabins in the middle of the two spaceships are connected side by side to form a joint plane of 14 cabins. This is also the advantage of the regular hexagonal cylinder, which can be docked side by side or head to tail.

The airtight hatch of the junction slowly opened, and Ma Wu and Chang An appeared on the opposite side, shaking hands and greeting each other.

"Captain, thank you for the reminder."

"They're all from my family, so you're welcome."

"Have your arrangements for the moon landing crew been arranged?" Chang An asked.

"It's been arranged that co-pilot Zhu Gang and maintainer Fang Haibo will land on the moon." Ma Wu really wanted to go, but he had to stay at the lunar space station as the commander-in-chief, so he had no choice but to give the opportunity to Zhu Gang.

"On my side, it's me and correspondent Song Quansheng." Chang An is the temporary captain of the moon landing spacecraft this time.

"Then let's have a good rest. We will officially land on the moon at ten o'clock this morning."

"Can."