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Defense Advanced Technology Research Institute.
"It's March 3th, should it be sent back?" Qian Xuesen asked.
"Director Qian, I will definitely be able to send back the data today." Tu Shancheng was still in Baikonur, connecting with the conference hall in Beijing. A established a control link. The satellite is now under ground control at Baikonur."
Tang Hua: "What time is the return transmission?"
"5 p.m. local time."
Luna [-]A went into orbit smoothly, then went from the earth to the moon, and then circled the moon.The automatic attitude control system on the satellite was working normally, and the high-pressure nitrogen cylinder pushed the satellite to rotate as a whole, pointed the camera lens at the back of the moon, and took a click.
Did you get it?I still do not know yet.Maybe something was captured, maybe the focus was not allowed and the picture was blurred, maybe the camera malfunctioned and a roll of white film came out.
This will all be answered in an hour.
The workflow of Luna [-]A is as follows:
Take pictures first, using a traditional film camera.
The satellite then immediately developed the film, and at the same time the satellite's small rocket motor ignited and flew back.Because the longest communication distance between the satellite and the ground is only 6 to 7 kilometers, Luna [-]A must return to the earth and become a satellite of the earth in order to transmit the photo data to the ground.
Luna [-]A's camera used film, and it had been developed on the way back.Then the satellite also installed a camera live broadcast system, which was developed by the Leningrad Television Research Institute. It is like installing a fax machine on the satellite, sending the film in, and the fax machine converts the photo information into electrical signals and sends it out. Then the ground receives the electrical signal, that is, the photo data is received.
The Soviet Union originally planned to restore and print these data on thermal chemical paper, but now Baikonur has a high-reliability hard disk array made in Suzhou. When receiving electrical signals and printing photos, the original data is also stored. , do not delete.
When the photo was printed on thermal chemical paper, people knew whether the Luna-[-]A satellite took a picture of the far side of the moon a week ago.Obviously, if the satellite snapped while taking pictures on the moon, there is no way to remedy it, and we can only wait for Luna [-]B to go to the sky.
"I heard that there is a French winemaker named Henri Mayer. He is not only Lafite's top winemaker, but also a fan of aerospace and science fiction. He thinks that the Soviet Union must not be able to take pictures of the back of the moon. I bought a space in the newspaper to make a bet,” said Qian Xuesen, “It was written in black and white: If the Soviet Union took pictures, he would donate 1000 bottles of red wine to the Soviet Academy of Sciences.”
Ren Xinmin: "Hey, this Frenchman is really interesting. Why does he think he can't take pictures of the back of the moon?"
Tang Hua: "Nowadays there is a folk science saying in foreign countries that the moon is not a star, but a secret spaceship of aliens. The back of the moon is the engine of the secret spaceship. Of course, it cannot be seen by humans on earth. If humans dare to take pictures of the back of the moon, foreign The stars will definitely let your photos be fully exposed."
Ren Xinmin: ...
Qian Xuesen: "What a strange statement. If the moon is the secret base of aliens, when Luna-[-]A collided with it, it should have fired a laser beam to smash the satellite."
……
While a few people in Beijing were chatting relaxedly, the staff of the Baikonur Space Launch Center became more and more nervous. The Luna-7A satellite was gradually approaching the earth, and the distance was less than [-] kilometers.
"drip, drip"
An instrument in the central hall that had been quiet for two weeks rang twice.All eyes turned around at the same time, only staring at the instrument.
This is an instrument for satellite-to-earth data transmission. The front workbench is a thermochemical paper transfer station, and the back cabinet is a hard disk array.
Yes, starting from more than 6 kilometers, the signal-to-noise ratio of the Luna-[-]A satellite and the ground communication connection has been higher than the expected value, and data has begun to be transmitted.
It took a little over five minutes for the first blurry, but clearly lunar photographs to take shape on the transfer table.
"My God, the back of the moon." "It's smoother than I thought, and there are not too many craters."
……
1959年3月17日，苏联发射的月球三号A卫星执行了绕月探测任务，并成功向地球传递了29张月球照片。这些照片拍摄距离6200~6500公里，大部分拍摄的是月球背面。
For the first time, human beings can have a 360° understanding of the closest star to the earth in the universe.
"Comrade Khrushchev called to congratulate." "The Academy of Sciences called to congratulate."
Tu Shancheng reported on the celebration at the launch center.
"Shancheng, tell me the key," Qian Xuesen said, "How is the quality of the photos? When will they be shared?"
"The photo... can only be said to be able to see the outline. The sharing needs to wait for the preliminary processing of the image. Comrade Khrushchev said that the photo of the moon should be on the front page of the newspaper. No text is needed, just print the photo. "
"Also, the Soviet Academy of Sciences said that after Henry Mayer's thousand bottles of red wine arrived, 150 bottles belonged to us."
Chapter 213, $39 Trolley Case
The Luna rocket was launched to the fifth, and two were successful. The Soviet Union completed the missions [-] and [-] of the first phase of lunar exploration, and it can come to an end for the time being.
After the ground station successfully received the data from the Luna-[-] satellite, the media in China, the Soviet Union and all socialist countries began to report on the success of taking pictures around the moon.On China's side, they are more modest and don't brag about what parts they have contracted for the Luna-[-] satellite. Anyway, China will have aerospace achievements one after another in the future, so there is no need to deliberately rub this hot spot.
One more thing on March 3: The Chinese table tennis team went to Dortmund, West Germany to participate in the No.17 Fifth World Table Tennis Championships.This is the first time that West Germany has hosted the World Table Tennis Championships after World War II, and it is also the first time that China has sent a full team to participate in the World Table Tennis Championships.
Jiang Yongning, Rong Guotuan, Wang Chuanyao, Xu Yinsheng, Yang Ruihua from the men's team, Qiu Zhonghui, Sun Meiying and Ye Peiqiong from the women's team participated in the No.20 [-]th World Table Tennis Championships for all five individuals and two team gold medals.
But this time, compared with the original national table tennis in history, it is slightly different.
China has now won the world championship.He was also the champion of the 1956 Olympic Games.He is also the 300-meter rifle three-position champion with abundant martial arts virtues.
The scene of winning the world championship for the first time and the national eruption happened in 1956.
Affected by the Olympic gold medal, shooting sports are now gaining popularity in China.
How popular is it?During the anti-insurgency battle in Lhasa last month, some employees and cadres who entered Tibet were shooting enthusiasts. They brought their own sports rifles to Tibet for work. Among them, a young employee of the Highway Bureau defended the compound of the Highway Bureau on the night of February 2.22. Killed three insurgents with a 5.6 mm sporting rifle.
Because the sports rifle bullets are less powerful than the small smashing cannon, the holes of the guns are easy to distinguish when cleaning the battlefield, and the record is undeniable.The employee of the Highway Bureau was like a god in one battle.
But Tang Hua discovered that although shooting is a gold medal event, the popularity of table tennis has also grown rapidly in the past two years, and more people play it than guns.After all, as the smallest and least particular sport among small balls, it does not take up much space, and the equipment is (can be) very cheap. It is probably because of this reason that Chinese people play table tennis a lot.
……
Tianjin.
"We've arrived in Tianjin, let's go to the satellite factory first," Tang Hua said to Qian Xuesen, "put some pressure on your rocket."
Tianjin Satellite Manufacturing Factory is still a simple and unpretentious board brand with white paint and black characters, but there are many changes inside.Most of the planned factory buildings have been built, and many saplings have been transplanted in the factory area, and now the factory area can see a little greenery.
"Actually, what you see here is not all the products of the satellite factory," Tang Hua said. "The photographic reconnaissance satellite, ah no, the earth photography satellite has already been shipped to the Soviet Union, and the geostationary communication test satellite is also on the way to the Soviet Union. They are all lined up." The team is waiting to launch with 8K series rockets. There are only two types of satellites being produced and tested in the satellite factory."
Qian Xuesen: "I just don't know if the three backup satellites for the camera reconnaissance satellite are enough."
Tang Hua: ...
Speechless, in theory, according to normal luck, if there is no moth, it should be enough.
Before launching a photographic reconnaissance satellite, the Soviet Union first launched a returnable satellite test star into the sky, and then bombed a recovery capsule from space into the atmosphere.This is not only to verify the technology of returning satellites, but also to test the Soviet Union's satellite recovery cabin search, positioning and picking system.
Although the territory of the Soviet Union is more than 2000 million square kilometers, Korolev still wants to make the recovery area of the satellite more accurate, and it is best to recover in Kazakhstan.
Tang Hua: "Before launching a photographic reconnaissance satellite, the Soviet Union will launch a test satellite first, and after it is successfully recovered, it will go to the next step. It should be okay. The more rockets manufactured and launched, the greater the reliability and success rate. will gradually increase.”
The final assembly shop of the satellite plant opens.Appearing in front of Tang Hua and Qian Xuesen was a row of six small trailers transporting satellites.
The satellite on the first small trailer shines with a metallic luster under the light. The patterns on the surface of the satellite are arranged in a sinuous manner. It is difficult for people to discern the actual use of these patterns at first glance, but they feel that they have a strong sense of technology.