The Long March carrier rocket is an old friend of the Chinese people, and on April 24, 1970, the "Long March-1" carrier rocket successfully launched the "Dongfanghong-1" satellite for the first time, and several decades have passed since then.

The Long March family is still on its mission, sending various satellites and spacecraft into space.

The Long March rocket will be launched into geosynchronous orbit by 120 reflective satellites, which represent the highest level of science and technology in China, and they are named "Ziwei" satellites.

The ancient Chinese believed that Ziwei Star was the emperor star of the five stars in the North Pole, and Ziwei the Great was a very powerful immortal.

The size and weight of the domineering "Ziwei" satellite are actually very small, and the single weight of the "Ziwei" satellite is only one-twelfth of the Beidou satellite, and the volume is one-sixteenth of the Beidou satellite.

The Long March rocket carrying Beidou satellites can achieve two satellites with one stone, that is, two Beidou satellites can be transported into the preset orbit at one time.

One hundred and twenty "Ziwei" will be sent into the preset orbit in four times, and each launch of the Long March rocket will carry 30 "Ziwei".

Thirty stars with one stone, this is the first in the history of aerospace.

In the world, only Chinese aviation personnel have completed the engineering and technical research of "one arrow and thirty stars", and are about to put it into practice.

The original technology of "one stone and thirty stars" is not the core of the "Light Point Project", it is only for transportation services.

Just by bringing out the transportation service technology of "one arrow and thirty stars", Chinese aviation people have been able to laugh proudly.

The time was close to 0 o'clock, and the room of the general command center of the capital was brightly lit.

All the staff are nervously waiting, full of anticipation in tension.

In order to do a good job in the "Light Point Project", Chinese researchers have invented countless innovative technologies and passed various simulation experiments.

The real exams are coming, in the darkest hour of the day, before dawn.

Only when the "Light Point Project" succeeds, more than 10,000 technological inventions with independent intellectual property rights will be valuable.

"It reminds me of the college entrance examination. In order to ease the solemn atmosphere, Shen Qi chatted with Master Zhang beside him.

"It's a very vivid analogy, 10,000 papers in three years of high school don't count, only the college entrance examination paper is the key to determining fate. "Mr. Zhang has put a lot of effort into this project, and the most critical moment is approaching, and he hopes to achieve the best results in this exam.

Chief Master Zhang thought for a while and asked, "Speaking of Academician Shen, didn't you send Yanda to Yanda because you won the championship in the IMO?"

"Yes, I was escorted, but I still took the college entrance examination to experience life. ”

"The IMO champion in high school can really do whatever he wants. My son is in his first year of high school this year, and he likes mathematics very much, and when this project is over, Academician Shen, you have to guide my son. My son's mathematical talent is very good, but IMO doesn't dare to expect it, and I am very happy that he can win a CMO national final under your guidance. ”

"With Lao Zhang's math level, there shouldn't be any problem in personally teaching your son the knowledge of high school math competitions, right?"

"It's a big problem! In the eyes of my son, I am an incompetent father who has not been home for a long time. And you, Academician Shen, are my son's idol and the male god in the hearts of these high school students who love mathematics. ”

"Yo, I didn't think you still have my fans. ”

Shen Qi and Chief Master Zhang chatted one after another, but their eyes were always glued to the information on the big screen.

0:00 has passed, the date has crossed to April 8, and the launch of "Ziwei" No. 1~30 has entered an hour countdown.

Everything is ready at the Wenchang launch base, and the Long March rocket stands in front of the launch pad, waiting for the ignition order.

Everything is ready at the northwest base, and the microcrystalline silicon cell stacks in the Kumtak desert gaze at the endless night, and the staff in this area can see that there are not many days left to see the night, and they have never cherished the night so much.

April 8 at 1 a.m. sharp.

The command center of the capital became very quiet, no one spoke, only the sound of equipment could be heard.

At this time, Shen Qi still has the right to terminate the launch of the "Ziwei" satellite.

Shen Qi took a deep breath, and then made an important decision: "Zero, carry out the launch mission as originally planned." ”

The "Zero" at the Wenchang launch base was as concise as ever: "Roger!"

1:01 a.m.

The strong and determined bass of "Zero" was heard in the command halls of Wenchang, Northwest China, and the capital:

"Attention units, I'm Zero, 1 minute ready!"

All units are ready to fight, and a major battle in the field of scientific research is about to begin.

1:01:01 min.

02 seconds.

03 seconds.

......

What kind of achievements can hundreds of thousands of Chinese scientists, engineers, and builders achieve after 20 years of painstaking efforts?

It took 20 years to build the country's important weapon, which has entered the stage of counting seconds.

April 8 1:01:50.

The commander of the Wenchang launch base counted the seconds with a calm voice:

"Ten, nine, eight, seven, six, five, four, three, two, one. ”

"Ignition, take-off!"

When the "Zero" command fell, thick smoke erupted from the launch pad at the Wenchang launch base, and flames gushed out from the bottom of the Long March carrier rocket.

Rumble!

A huge roar resounded in the South China Sea, and a Long March rocket carrying 30 "Ziwei" reflex satellites rose from the ground!

The darkest night, the brightest flames, the Long March rocket rose into the air rapidly.

The 900-ton minus 252 degrees liquid hydrogen fuel in the capsule provides powerful thrust, and 17 seconds after takeoff, the Long March rocket no longer flies vertically upwards, but follows a programmed turning action along the Earth's inclination.

The Long March rocket flew higher and higher, and gradually drifted away.

174 seconds after takeoff, the rocket boosters completed their mission and detached from the main body of the Long March rocket.

The Long March rocket let itself go as fast as it could, and 285 seconds after takeoff, it flew out of the atmosphere, and the top fairing protecting the payload ended its mission and separated from the main body of the rocket.

The smooth flight of the rocket out of the atmosphere is an important node, and the first flight of the "Light Point Project" is half successful.

A few kilometers away from the Wenchang launch site, the Tongguling survey point carried out the work of tracking the rocket and measuring data in an intense and orderly manner, and the most advanced measurement equipment and radar transmitted the real-time data during the flight of the Long March rocket to the command halls of the three places for the first time.

Shen Qi clenched his fists and stared intently at the real-time data on the big screen.

The data shows that at this time, the fuel of the first-stage rocket is exhausted, the first-stage rocket is separated, and the engine of the second-stage rocket is started.

"907, 907!" Shen Qi used his naked eyes and brain to calculate and analyze the subsequent flight of the Long March rocket at an extraordinary speed. Shen Qi is doing similar work to the computer system of the capital command center.

No one knew what the technical meaning of "907" that Shen Qi repeatedly chanted represented, and Shen Qi didn't have time to explain it to his colleagues.

"Steady, steady!" Mr. Zhang suppressed the excitement and uneasiness in his heart, excited because everything seemed to be going well at the moment, and uneasy because there were still uncertainties.