At about 9:56 on April 16, the Shenzhou 13 return capsule accurately hit the target landing area, and sure enough, it lived up to expectations, the Shenzhou 13 astronauts landed safely, and at this moment countless Chinese people were so excited that they were in tears, we can finally see them again on the ground, and they can also meet their relatives who have been separated for a long time.
On April 15, before the spacecraft returned to the ground, the Shenzhou 13 astronauts completed the setting of the space station assembly with the cooperation of ground personnel, completed the down transmission of scientific experimental data, and completed the cleaning and transfer of orbital materials.
On the evening of April 15, three Shenzhou 13 astronauts made a simple farewell before leaving the complex, and at 22:10 on April 15, Zhai Zhigang closed the two-way pressure module door between the Tianhe core module and the Shenzhou 13 spacecraft, and the three astronauts changed into the cabin pressure suits and waited for return.
At 00:44 on April 16, the Shenzhou 13 spacecraft left the space station and entered the spacecraft return phase, and at about 9:56 on April 16, the Shenzhou 13 return capsule accurately hit the target landing area, and the astronauts returned, which means that the Chinese space station has shifted from the verification stage to the large-scale construction stage.
At about 8 o'clock on April 16, before the landing of the return module, there were realistic footage showing that dozens of rescue vehicles on the Dongfeng landing field were parked on standby on the outskirts of the core landing area, which was strange, before returning to the landing of the cabin, why did the search and rescue vehicle not wait directly in the core landing area?
The Dongfeng landing site has an area of about 20,000 square kilometers, 190 kilometers long from north to south, and 120 kilometers wide from east to west, which can be said to be very large, but the predetermined core landing area of the Shenzhou 13 return capsule is a 36×36 kilometers square-shaped area, and dozens of rescue vehicles are on standby on the periphery of the block.
When the Shenzhou 13 return module passes through the "black barrier area", throws off the heat shield at the bottom, and opens the parachute, the ground rescue vehicle drives towards the return module forecast landing point, why doesn't the search and rescue vehicle wait directly in the core landing area, so that it can be searched and rescued for astronauts faster?
This is because the Shenzhou 13 return capsule through the "black barrier area" area to throw off the return capsule heat shield weighing hundreds of kilograms, the heat shield is an important part of the return capsule, the outer surface of the heat shield insulation material is honeycomb-shaped, high temperature resistance and high strength, can withstand the burning of more than 2000 degrees Celsius.
The heat shield will fall directly to the ground from a height of tens of kilometers, and in order to prevent the heat shield from hitting the rescue vehicle, all the rescue vehicles will wait on the periphery of the predetermined core landing area.
In addition, the Shenzhou 13 return capsule aims at the predetermined core landing area at a distance of hundreds of kilometers for targeting, the technical difficulty can be imagined, in case the return capsule deviates from the core landing area and falls to an area outside the core area, the rescue vehicles parked on the periphery of the core landing area can rush to the landing area at a faster speed.
Interestingly, the Shenzhou 13 return capsule is erect to meet with everyone, which is also the most successful one since the Shenzhou 6 return capsule landed on the ground, because the previous landing return capsule was placed upside down to meet everyone, such as the Shenzhou 12 return capsule, this time is really exceptional, it is a very good omen, the later construction of the Chinese space station is more smooth.
Different from the past, this time the ground rescue team specially prepared three medical supervision medical insurance vehicles for the three astronauts, from the video screen, the box car painted with orange color on the outer surface is the medical supervision medical insurance vehicle, and the medical insurance equipment inside the medical supervision medical insurance vehicle is very complete, there are eating and drinking, there are medical equipment, and there are toilets.
After the three astronauts came out of the cabin and were interviewed by reporters, they were transferred to the medical supervision medical insurance vehicle, and with the escort of these three medical supervision medical insurance vehicles and a large number of medical personnel, we added another layer of safety to our space heroes, so that they could slowly adapt to the gravitational environment in a more comfortable environment.
The three astronauts received the most subtle care, better than the American and Russian astronauts, which fully reflects the strength of the motherland, the three astronauts will take the medical supervision and medical insurance vehicle to the Beijing flight control center, where they will receive up to 6 months of isolated medical care.
I believe that it will not be long before three astronauts can stand and meet with everyone, the successful return of Shenzhou 13 astronauts means that the Tianzhou 4 cargo spacecraft will soon be launched, with reference to the launch time of Tianzhou 3, Tianzhou 4 is expected to be launched around April 19, the time has entered the countdown, we will wait and see. Interesting scientific exploration content, please pay attention to the only WeChat public account: Interesting Exploration